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{{for|geodesics on the [[Earth]] and other [[ellipsoid]]s|Geodesics on an ellipsoid}}
{{Geodesy}}
[[File:Spherical triangle.svg|thumb|right|150px|A geodesic triangle on the sphere.
The geodesics are [[great circle]] arcs.]]
In [[mathematics]], particularly [[differential geometry]], a '''geodesic''' ({{IPAc-en|ˌ|dʒ|iː|ɵ|ˈ|d|iː|z|ɨ|k}} {{respell|JEE|o|DEE|zik}} or {{IPAc-en|ˌ|dʒ|iː|ɵ|ˈ|d|ɛ|s|ɨ|k}} {{respell|JEE|o|DES|ik}}) is a generalization of the notion of a "[[Line (mathematics)|straight line]]"  to "[[manifold|curved space]]s".  In the presence of an [[affine connection]], a geodesic is defined to be a curve whose [[Tangent space|tangent vector]]s remain parallel if they are [[parallel transport|transported]] along it. If this connection is the [[Levi-Civita connection]] induced by a [[Riemannian metric]], then the geodesics are ([[local property|locally]]) the shortest path between points in the space.


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The term "geodesic" comes from ''[[geodesy]]'', the science of measuring the size and shape of [[Earth]]; in the original sense, a geodesic was the shortest route between two points on the Earth's [[surface]], namely, a [[line segment|segment]] of a [[great circle]].  The term has been generalized to include measurements in much more general mathematical spaces; for example, in [[graph theory]], one might consider a geodesic between two [[vertex (graph theory)|vertices]]/nodes of a [[graph (mathematics)|graph]].
 
Geodesics are of particular importance in [[general relativity]].  [[Geodesics in general relativity]] describe the motion of inertial [[test particles]].
 
==Introduction==
The shortest path between two points in a curved space can be found by writing the [[equation]] for the length of a [[curve]] (a function ''f'' from an [[open interval]] of '''R''' to the [[manifold]]), and then minimizing this length using the [[calculus of variations]]. This has some minor technical problems, because there is an infinite dimensional space of different ways to parameterize the shortest path. It is simpler to demand not only that the  curve locally minimize length but also that it is parameterized "with constant velocity", meaning that  the distance from ''f''(''s'') to ''f''(''t'') along the geodesic is proportional to |''s''&minus;''t''|. Equivalently, a different quantity may be defined, termed the [[energy]] of the curve; minimizing the energy leads to the same equations for a geodesic (here "constant velocity" is a consequence of minimisation). Intuitively, one can understand this second formulation by noting that an [[elastic band]] stretched between two points will contract its length, and in so doing will minimize its energy.  The resulting shape of the band is a geodesic.
 
In Riemannian geometry geodesics are not the same as "shortest curves" between two points, though the two concepts are closely related. The difference is that geodesics are only ''locally'' the shortest distance between points, and are parameterized with "constant velocity".  Going the "long way round" on a [[great circle]] between two points on a sphere is a geodesic but not the shortest path between the points. The map ''t''&nbsp;→&nbsp;''t''<sup>2</sup> from the unit interval to itself gives the shortest path between 0 and 1, but is not a geodesic because the velocity of the corresponding motion of a point is not constant.
 
Geodesics are commonly seen in the study of [[Riemannian geometry]] and more generally [[metric geometry]]. In general relativity, geodesics describe the motion of [[point particle]]s under the influence of gravity alone. In particular, the path taken by a falling rock, an orbiting [[satellite]], or the shape of a [[planetary orbit]] are all geodesics in curved space-time. More generally, the topic of [[sub-Riemannian geometry]] deals with the paths that objects may take when they are not free, and their movement is constrained in various ways.
 
This article presents the mathematical formalism involved in defining, finding, and proving the existence of geodesics, in the case of [[Riemannian manifold|Riemannian]] and [[pseudo-Riemannian manifold]]s.  The article [[geodesic (general relativity)]] discusses the special case of general relativity in greater detail.
 
===Examples===
[[File:Transpolar geodesic on a triaxial ellipsoid case A.svg|thumb|right|200px|
A [[geodesics on a triaxial ellipsoid|geodesic on a triaxial ellipsoid]].]]
The most familiar examples are the straight lines in [[Euclidean geometry]]. On a  [[sphere]], the images of geodesics are the  [[great circle]]s. The shortest path from point ''A'' to point ''B'' on a sphere is given by the shorter [[arc (geometry)|arc]] of the great circle passing through ''A'' and ''B''. If ''A'' and ''B'' are [[antipodal point]]s (like the [[North Pole]] and the [[South Pole]]), then there are ''infinitely many'' shortest paths between them.  [[Geodesics on an ellipsoid]] behave in a more complicated way than on a sphere; in particular, they are not closed in general (see figure).
 
 
==Metric geometry==
In [[metric geometry]], a geodesic is a curve which is everywhere [[locally]] a [[distance]] minimizer. More precisely, a [[curve]] γ:&nbsp;''I''&nbsp;→&nbsp;''M'' from an interval ''I'' of the reals to the [[metric space]] ''M'' is a '''geodesic''' if there is a [[mathematical constant|constant]] ''v''&nbsp;≥&nbsp;0 such that for any ''t''&nbsp;∈&nbsp;''I'' there is a neighborhood ''J'' of ''t'' in ''I'' such that for any {{nobr|''t''<sub>1</sub>, ''t''<sub>2</sub> ∈ ''J''}} we have
 
:<math>d(\gamma(t_1),\gamma(t_2))=v|t_1-t_2|.\,</math>
 
This generalizes the notion of geodesic for Riemannian manifolds. However, in metric geometry the geodesic considered is often equipped with [[Curve#Length of curves|natural parameterization]], i.e. in the above identity ''v''&nbsp;=&nbsp;1 and
 
:<math>d(\gamma(t_1),\gamma(t_2))=|t_1-t_2|.\,</math>
 
If the last equality is satisfied for all ''t''<sub>1</sub>, ''t''<sub>2</sub> ∈''I'', the geodesic is called a '''minimizing geodesic''' or '''shortest path'''.
 
In general, a metric space may have no geodesics, except constant curves. At the other extreme, any two points in a [[length metric space]] are joined by a minimizing sequence of [[rectifiable path]]s, although this minimizing sequence need not converge to a geodesic.
 
==Riemannian geometry==
In a [[Riemannian manifold]] ''M'' with [[metric tensor]] ''g'', the length of a continuously differentiable curve γ&nbsp;:&nbsp;[''a'',''b'']&nbsp;→&nbsp;''M'' is defined by
:<math>L(\gamma)=\int_a^b \sqrt{  g_{\gamma(t)}(\dot\gamma(t),\dot\gamma(t)) }\,dt.</math>
The distance ''d''(''p'', ''q'') between two points ''p'' and ''q'' of ''M'' is defined as the [[infimum]] of the length taken over all continuous, piecewise continuously differentiable curves γ&nbsp;:&nbsp;[''a'',''b'']&nbsp;→&nbsp;''M'' such that γ(''a'')&nbsp;=&nbsp;''p'' and γ(''b'')&nbsp;=&nbsp;''q''.  With this definition of distance, geodesics in a Riemannian manifold are then the locally distance-minimizing paths.
 
The minimizing curves of ''L'' in a small enough [[open set]] of ''M'' can be obtained by techniques of [[calculus of variations]].  Typically, one introduces the following [[action (physics)|action]] or [[energy functional]]
:<math>E(\gamma)=\frac{1}{2}\int g_{\gamma(t)}(\dot\gamma(t),\dot\gamma(t))\,dt.</math>
It is then enough to minimize the functional ''E'', owing to the [[Cauchy&ndash;Schwarz inequality]]
:<math>L(\gamma)^2\le 2(b-a)E(\gamma)</math>
with equality if and only if |dγ/dt| is constant.
 
The [[Euler–Lagrange]] equations of motion for the functional ''E'' are then given in local coordinates by
:<math>\frac{d^2x^\lambda }{dt^2} + \Gamma^{\lambda}_{\mu \nu }\frac{dx^\mu }{dt}\frac{dx^\nu }{dt} = 0,</math>
where <math>\Gamma^\lambda_{\mu\nu}</math> are the [[Christoffel symbols]] of the metric.  This is the '''geodesic equation''', discussed [[#Affine geodesics|below]].
 
===Calculus of variations===
 
Techniques of the classical [[calculus of variations]] can be applied to examine the energy functional ''E''. The [[first variation]] of energy is defined in local coordinates by
 
:<math>\delta E(\gamma)(\varphi) = \left.\frac{\partial}{\partial t}\right|_{t=0} E(\gamma + t\varphi).</math>
 
The [[critical point (mathematics)|critical point]]s of the first variation are precisely the geodesics.  The [[second variation]] is defined by
 
:<math>\delta^2 E(\gamma)(\varphi,\psi) = \left.\frac{\partial^2}{\partial s\partial t}\right|_{s=t=0}E(\gamma + t\varphi + s\psi).</math>
 
In an appropriate sense, zeros of the second variation along a geodesic γ arise along [[Jacobi field]]s.  Jacobi fields are thus regarded as variations through geodesics.
 
By applying variational techniques from [[classical mechanics]], one can also regard [[geodesics as Hamiltonian flows]].  They are solutions of the associated [[Hamilton–Jacobi equation]]s, with (pseudo-)Riemannian metric taken as [[Hamiltonian mechanics|Hamiltonian]].
 
==Affine geodesics==
{{Seealso|Geodesics in general relativity}}
A '''geodesic''' on a [[Differentiable manifold|smooth manifold]]  ''M'' with an [[affine connection]]  ∇ is defined as a [[curve]] γ(''t'') such that [[parallel transport]] along the curve preserves the tangent vector to the curve, so
{{NumBlk|:|<math> \nabla_{\dot\gamma} \dot\gamma= 0</math>|{{EquationRef|1}}}}
at each point along the curve,  where <math>\dot\gamma</math> is the derivative with respect to <math>t</math>.  More precisely, in order to define the covariant derivative of <math>\dot\gamma</math> it is necessary first to extend <math>\dot\gamma</math> to a continuously differentiable [[vector field]] in an [[open set]].  However, the resulting value of ({{EquationNote|1}}) is independent of the choice of extension.
 
Using [[local coordinates]] on ''M'', we can write the '''geodesic equation''' (using the [[summation convention]]) as
:<math>\frac{d^2\gamma^\lambda }{dt^2} + \Gamma^{\lambda}_{\mu \nu }\frac{d\gamma^\mu }{dt}\frac{d\gamma^\nu }{dt} = 0\ ,</math>
where <math>\gamma^\mu = x^\mu \circ \gamma (t)</math> are the coordinates of the curve γ(''t'') and <math>\Gamma^{\lambda }_{\mu \nu }</math> are the [[Christoffel symbol]]s of the connection ∇. This is just an [[ordinary differential equation]] for the coordinates.  It has a unique solution, given an initial position and an initial velocity.  Therefore, from the point of view of [[classical mechanics]], geodesics can be thought of as trajectories of [[free particle]]s in a manifold. Indeed, the equation <math> \nabla_{\dot\gamma} \dot\gamma= 0</math> means that the acceleration of the curve has no components in the direction of the surface (and therefore it is perpendicular to the tangent plane of the surface at each point of the curve). So, the motion is completely determined by the bending of the surface. This is also the idea of general relativity where particles move on geodesics and the bending is caused by the gravity.
 
===Existence and uniqueness===
The ''local existence and uniqueness theorem'' for geodesics states that geodesics on a smooth manifold with an [[affine connection]] exist, and are unique.  More precisely:
 
:For any point ''p'' in ''M'' and for any vector ''V'' in ''T<sub>p</sub>M'' (the [[tangent space]] to ''M'' at ''p'') there exists a unique geodesic <math>\gamma \,</math> : ''I'' &rarr; ''M'' such that
::<math>\gamma(0) = p \,</math> and
::<math>\dot\gamma(0) = V</math>,
:where ''I'' is a maximal [[open interval]] in '''R''' containing 0.
 
In general, ''I'' may not be all of '''R''' as for example for an open disc in '''R'''<sup>2</sup>. The proof of this theorem follows from the theory of  [[ordinary differential equation]]s, by noticing that the geodesic equation is a second-order ODE. Existence and uniqueness then follow from the [[Picard&ndash;Lindelöf theorem]] for the solutions of ODEs with prescribed initial conditions. γ depends [[smooth function|smoothly]] on both ''p'' and ''V''.
 
===Geodesic flow===
Geodesic [[Flow (mathematics)|flow]] is a local '''R'''-[[group action|action]] on [[tangent bundle]] ''TM'' of a manifold ''M'' defined in the following way
:<math>G^t(V)=\dot\gamma_V(t)</math>
where ''t''&nbsp;∈&nbsp;'''R''', ''V''&nbsp;∈&nbsp;''TM'' and <math>\gamma_V</math> denotes the geodesic with initial data <math>\dot\gamma_V(0)=V</math>. Thus,  ''G<sub>t</sub>''(''V'')&nbsp;=&nbsp;exp(''tV'') is the [[exponential map]] of the vector ''tV''.  A closed orbit of the geodesic flow corresponds to a [[closed geodesic]] on ''M''.
 
On a (pseudo-)Riemannian manifold, the geodesic flow is identified with a [[Hamiltonian flow]] on the cotangent bundle.  The [[Hamiltonian mechanics|Hamiltonian]] is then given by the inverse of the (pseudo-)Riemannian metric, evaluated against the [[canonical one-form]]. In particular the flow preserves the (pseudo-)Riemannian metric <math>g</math>, i.e.
:<math>g(G^t(V),G^t(V))=g(V,V)</math>.
In particular, when ''V'' is a unit vector, <math>\gamma_V</math> remains unit speed throughout, so the geodesic flow is tangent to the [[unit tangent bundle]].  [[Liouville's theorem (Hamiltonian)|Liouville's theorem]] implies invariance of a kinematic measure on the unit tangent bundle.
 
===Geodesic spray===
The geodesic flow defines a family of curves in the [[tangent bundle]]. The derivatives of these curves define a [[vector field]]  on the [[total space]] of the tangent bundle, known as the [[spray (mathematics)|geodesic spray]].
 
More precisely, an affine connection gives rise to a splitting of the [[double tangent bundle]] TT''M'' into [[horizontal bundle|horizontal]] and [[vertical bundle]]s:
:<math>TTM = H\oplus V.</math>
The geodesic spray is the unique horizontal vector field ''W'' satisfying
:<math>\pi_* W_v = v\,</math>
at each point ''v''&nbsp;∈&nbsp;T''M''; here π<sub>∗</sub>&nbsp;:&nbsp;TT''M''&nbsp;→&nbsp;T''M'' denotes the [[pushforward (differential)]] along the projection π&nbsp;:&nbsp;T''M''&nbsp;→&nbsp;''M'' associated to the tangent bundle.
 
More generally, the same construction allows one to construct a vector field for any [[Ehresmann connection]] on the tangent bundle.  For the resulting vector field to be a spray (on the deleted tangent bundle T''M''&nbsp;\&nbsp;{0}) it is enough that the connection be equivariant under positive rescalings: it need not be linear.  That is, (cf. [[Ehresmann connection#Vector bundles and covariant derivatives]]) it is enough that the horizontal distribution satisfy
:<math>H_{\lambda X} = d(S_\lambda)_X H_X\,</math>
for every ''X''&nbsp;∈&nbsp;T''M''&nbsp;\&nbsp;{0} and λ&nbsp;>&nbsp;0. Here ''d''(''S''<sub>λ</sub>) is the [[pushforward (differential)|pushforward]] along the scalar homothety <math>S_\lambda: X\mapsto \lambda X.</math>  A particular case of a non-linear connection arising in this manner is that associated to a [[Finsler manifold]].
 
===Affine and projective geodesics===
Equation ({{EquationNote|1}}) is invariant under affine reparameterizations; that is, parameterizations of the form
:<math>t\mapsto at+b</math>
where ''a'' and ''b'' are constant real numbers. Thus apart from specifying a certain class of embedded curves, the geodesic equation also determines a preferred class of parameterizations on each of the curves. Accordingly, solutions of ({{EquationNote|1}}) are called geodesics with '''affine parameter'''.
 
An affine connection is ''determined by'' its family of affinely parameterized geodesics, up to [[torsion tensor|torsion]] {{harv|Spivak|1999|loc=Chapter 6, Addendum I}}.  The torsion itself does not, in fact, affect the family of geodesics, since the geodesic equation depends only on the symmetric part of the connection.  More precisely, if <math>\nabla, \bar{\nabla}</math> are two connections such that the difference tensor
:<math>D(X,Y) = \nabla_XY-\bar{\nabla}_XY</math>
is [[skew-symmetric]], then <math>\nabla</math> and <math>\bar{\nabla}</math> have the same geodesics, with the same affine parameterizations. Furthermore, there is a unique connection having the same geodesics as  <math>\nabla</math>, but with vanishing torsion.
 
Geodesics without a particular parameterization are described by a [[projective connection]].
 
==See also==
<div style="-moz-column-count:2; column-count:2;">
* [[Basic introduction to the mathematics of curved spacetime]]
* [[Clairaut's relation]]
* [[Closed geodesic]]
* [[Complex geodesic]]
* [[Differential geometry of curves]]
* [[Exponential map]]
* [[Fermat's principle]]
* [[Geodesic dome]]
* [[Geodesic (general relativity)]]
* [[Geodesics as Hamiltonian flows]]
* [[Hopf&ndash;Rinow theorem]]
* [[Intrinsic metric]]
* [[Jacobi field]]
* [[Quasigeodesic]]
* [[Solving the geodesic equations]]
* [[Zoll surface]]
* [[Nautical chart]]
* [[Rhumb line]] (loxodrome)
* [[Meridian arc]]
</div>
 
==References==
*{{Citation | last1=Adler | first1=Ronald | last2=Bazin | first2=Maurice | last3=Schiffer | first3=Menahem | title=Introduction to General Relativity | publisher=[[McGraw-Hill]] | location=New York | edition=2nd | isbn=978-0-07-000423-8 | year=1975}}. ''See chapter 2''.
*{{Citation | last1=Abraham | first1=Ralph H. | author1-link=Ralph Abraham | last2=Marsden | first2=Jerrold E. | author2-link=Jerrold E. Marsden | title=Foundations of mechanics | publisher=Benjamin-Cummings | location=London | isbn=978-0-8053-0102-1 | year=1978}}. ''See section 2.7''.
*{{Citation | last1=Jost | first1=Jürgen | title=Riemannian Geometry and Geometric Analysis | publisher=[[Springer-Verlag]] | location=Berlin, New York | isbn=978-3-540-42627-1 | year=2002}}. ''See section 1.4''.
*{{citation | last1=Kobayashi|first1=Shoshichi|last2=Nomizu|first2=Katsumi | title = Foundations of Differential Geometry|volume=Vol. 1| publisher=Wiley-Interscience | year=1996|edition=New|isbn=0-471-15733-3}}.
*{{Citation | last1=Landau | first1=L. D. | author1-link=Lev Landau | last2=Lifshitz | first2=E. M. | author2-link=Evgeny Lifshitz | title=Classical Theory of Fields | publisher=Pergamon | location=Oxford | isbn=978-0-08-018176-9 | year=1975}}. ''See section 87''.
*{{Citation | last1=Misner | first1=Charles W. | author1-link=Charles W. Misner | last2=Thorne | first2=Kip | author2-link=Kip Thorne | last3=Wheeler | first3=John Archibald | author3-link=John Archibald Wheeler | title=[[Gravitation (book)|Gravitation]] | publisher=W. H. Freeman | isbn=978-0-7167-0344-0 | year=1973}}
*{{Citation | last1=Ortín | first1=Tomás | title=Gravity and strings | publisher=[[Cambridge University Press]] | isbn=978-0-521-82475-0 | year=2004}}.  Note especially pages 7 and 10.
*{{Citation | last1=Spivak | first1=Michael | author1-link=Michael Spivak | title=A Comprehensive introduction to differential geometry (Volume 2) | publisher=Publish or Perish | location=Houston, TX | isbn=978-0-914098-71-3 | year=1999}}
*{{springer|first=Yu.A.|last=Volkov|title=Geodesic line|id=G/g044120}}.
*{{Citation | last1=Weinberg | first1=Steven | author1-link=Steven Weinberg | title=Gravitation and Cosmology: Principles and Applications of the General Theory of Relativity | publisher=[[John Wiley & Sons]] | location=New York | isbn=978-0-471-92567-5 | year=1972}}. ''See chapter 3''.
 
== External links ==
* [http://www.black-holes.org/relativity5.html Caltech Tutorial on Relativity] &mdash; A nice, simple explanation of geodesics with accompanying animation.
* [http://www.cmsim.eu/papers_pdf/january_2012_papers/25_CMSIM_2012_Pokorny_1_281-298.pdf Geodesics Revisited] &mdash; Introduction to geodesics including two ways of derivation of the equation of geodesic with applications in geometry (geodesic on a sphere and on a [[torus]]), mechanics ([[brachistochrone]]) and optics (light beam in inhomogeneous medium).
* [http://wiki.sagemath.org/interact/geometry#Geodesics_on_a_parametric_surface Geodesics on a parametric surface -- sage interact] &mdash; Interactive [[Sagemath]] worksheet to calculate and illustrate geodesics on parametric surfaces.
* [http://www.map.mpim-bonn.mpg.de/Totally_geodesic_submanifold Totally geodesic submanifold] at the Manifold Atlas
{{tensor}}
 
[[Category:Geodesic (mathematics)| ]]

Revision as of 10:09, 26 January 2014

28 year-old Painting Investments Worker Truman from Regina, usually spends time with pastimes for instance interior design, property developers in new launch ec Singapore and writing. Last month just traveled to City of the Renaissance. Template:Geodesy

A geodesic triangle on the sphere. The geodesics are great circle arcs.

In mathematics, particularly differential geometry, a geodesic (Template:IPAc-en Template:Respell or Template:IPAc-en Template:Respell) is a generalization of the notion of a "straight line" to "curved spaces". In the presence of an affine connection, a geodesic is defined to be a curve whose tangent vectors remain parallel if they are transported along it. If this connection is the Levi-Civita connection induced by a Riemannian metric, then the geodesics are (locally) the shortest path between points in the space.

The term "geodesic" comes from geodesy, the science of measuring the size and shape of Earth; in the original sense, a geodesic was the shortest route between two points on the Earth's surface, namely, a segment of a great circle. The term has been generalized to include measurements in much more general mathematical spaces; for example, in graph theory, one might consider a geodesic between two vertices/nodes of a graph.

Geodesics are of particular importance in general relativity. Geodesics in general relativity describe the motion of inertial test particles.

Introduction

The shortest path between two points in a curved space can be found by writing the equation for the length of a curve (a function f from an open interval of R to the manifold), and then minimizing this length using the calculus of variations. This has some minor technical problems, because there is an infinite dimensional space of different ways to parameterize the shortest path. It is simpler to demand not only that the curve locally minimize length but also that it is parameterized "with constant velocity", meaning that the distance from f(s) to f(t) along the geodesic is proportional to |st|. Equivalently, a different quantity may be defined, termed the energy of the curve; minimizing the energy leads to the same equations for a geodesic (here "constant velocity" is a consequence of minimisation). Intuitively, one can understand this second formulation by noting that an elastic band stretched between two points will contract its length, and in so doing will minimize its energy. The resulting shape of the band is a geodesic.

In Riemannian geometry geodesics are not the same as "shortest curves" between two points, though the two concepts are closely related. The difference is that geodesics are only locally the shortest distance between points, and are parameterized with "constant velocity". Going the "long way round" on a great circle between two points on a sphere is a geodesic but not the shortest path between the points. The map t → t2 from the unit interval to itself gives the shortest path between 0 and 1, but is not a geodesic because the velocity of the corresponding motion of a point is not constant.

Geodesics are commonly seen in the study of Riemannian geometry and more generally metric geometry. In general relativity, geodesics describe the motion of point particles under the influence of gravity alone. In particular, the path taken by a falling rock, an orbiting satellite, or the shape of a planetary orbit are all geodesics in curved space-time. More generally, the topic of sub-Riemannian geometry deals with the paths that objects may take when they are not free, and their movement is constrained in various ways.

This article presents the mathematical formalism involved in defining, finding, and proving the existence of geodesics, in the case of Riemannian and pseudo-Riemannian manifolds. The article geodesic (general relativity) discusses the special case of general relativity in greater detail.

Examples

A geodesic on a triaxial ellipsoid.

The most familiar examples are the straight lines in Euclidean geometry. On a sphere, the images of geodesics are the great circles. The shortest path from point A to point B on a sphere is given by the shorter arc of the great circle passing through A and B. If A and B are antipodal points (like the North Pole and the South Pole), then there are infinitely many shortest paths between them. Geodesics on an ellipsoid behave in a more complicated way than on a sphere; in particular, they are not closed in general (see figure).


Metric geometry

In metric geometry, a geodesic is a curve which is everywhere locally a distance minimizer. More precisely, a curve γ: I → M from an interval I of the reals to the metric space M is a geodesic if there is a constant v ≥ 0 such that for any t ∈ I there is a neighborhood J of t in I such that for any Template:Nobr we have

This generalizes the notion of geodesic for Riemannian manifolds. However, in metric geometry the geodesic considered is often equipped with natural parameterization, i.e. in the above identity v = 1 and

If the last equality is satisfied for all t1, t2I, the geodesic is called a minimizing geodesic or shortest path.

In general, a metric space may have no geodesics, except constant curves. At the other extreme, any two points in a length metric space are joined by a minimizing sequence of rectifiable paths, although this minimizing sequence need not converge to a geodesic.

Riemannian geometry

In a Riemannian manifold M with metric tensor g, the length of a continuously differentiable curve γ : [a,b] → M is defined by

The distance d(p, q) between two points p and q of M is defined as the infimum of the length taken over all continuous, piecewise continuously differentiable curves γ : [a,b] → M such that γ(a) = p and γ(b) = q. With this definition of distance, geodesics in a Riemannian manifold are then the locally distance-minimizing paths.

The minimizing curves of L in a small enough open set of M can be obtained by techniques of calculus of variations. Typically, one introduces the following action or energy functional

It is then enough to minimize the functional E, owing to the Cauchy–Schwarz inequality

with equality if and only if |dγ/dt| is constant.

The Euler–Lagrange equations of motion for the functional E are then given in local coordinates by

where are the Christoffel symbols of the metric. This is the geodesic equation, discussed below.

Calculus of variations

Techniques of the classical calculus of variations can be applied to examine the energy functional E. The first variation of energy is defined in local coordinates by

The critical points of the first variation are precisely the geodesics. The second variation is defined by

In an appropriate sense, zeros of the second variation along a geodesic γ arise along Jacobi fields. Jacobi fields are thus regarded as variations through geodesics.

By applying variational techniques from classical mechanics, one can also regard geodesics as Hamiltonian flows. They are solutions of the associated Hamilton–Jacobi equations, with (pseudo-)Riemannian metric taken as Hamiltonian.

Affine geodesics

Fitter (General ) Cameron Broadbent from Stevensville, spends time with hobbies including metal detection, property developers in singapore and psychology. Finds encouragement by making vacation to Tomb of Askia.

Have a look at my page; condo for Sale A geodesic on a smooth manifold M with an affine connection ∇ is defined as a curve γ(t) such that parallel transport along the curve preserves the tangent vector to the curve, so Template:NumBlk at each point along the curve, where is the derivative with respect to . More precisely, in order to define the covariant derivative of it is necessary first to extend to a continuously differentiable vector field in an open set. However, the resulting value of (Template:EquationNote) is independent of the choice of extension.

Using local coordinates on M, we can write the geodesic equation (using the summation convention) as

where are the coordinates of the curve γ(t) and are the Christoffel symbols of the connection ∇. This is just an ordinary differential equation for the coordinates. It has a unique solution, given an initial position and an initial velocity. Therefore, from the point of view of classical mechanics, geodesics can be thought of as trajectories of free particles in a manifold. Indeed, the equation means that the acceleration of the curve has no components in the direction of the surface (and therefore it is perpendicular to the tangent plane of the surface at each point of the curve). So, the motion is completely determined by the bending of the surface. This is also the idea of general relativity where particles move on geodesics and the bending is caused by the gravity.

Existence and uniqueness

The local existence and uniqueness theorem for geodesics states that geodesics on a smooth manifold with an affine connection exist, and are unique. More precisely:

For any point p in M and for any vector V in TpM (the tangent space to M at p) there exists a unique geodesic  : IM such that
and
,
where I is a maximal open interval in R containing 0.

In general, I may not be all of R as for example for an open disc in R2. The proof of this theorem follows from the theory of ordinary differential equations, by noticing that the geodesic equation is a second-order ODE. Existence and uniqueness then follow from the Picard–Lindelöf theorem for the solutions of ODEs with prescribed initial conditions. γ depends smoothly on both p and V.

Geodesic flow

Geodesic flow is a local R-action on tangent bundle TM of a manifold M defined in the following way

where t ∈ R, V ∈ TM and denotes the geodesic with initial data . Thus, Gt(V) = exp(tV) is the exponential map of the vector tV. A closed orbit of the geodesic flow corresponds to a closed geodesic on M.

On a (pseudo-)Riemannian manifold, the geodesic flow is identified with a Hamiltonian flow on the cotangent bundle. The Hamiltonian is then given by the inverse of the (pseudo-)Riemannian metric, evaluated against the canonical one-form. In particular the flow preserves the (pseudo-)Riemannian metric , i.e.

.

In particular, when V is a unit vector, remains unit speed throughout, so the geodesic flow is tangent to the unit tangent bundle. Liouville's theorem implies invariance of a kinematic measure on the unit tangent bundle.

Geodesic spray

The geodesic flow defines a family of curves in the tangent bundle. The derivatives of these curves define a vector field on the total space of the tangent bundle, known as the geodesic spray.

More precisely, an affine connection gives rise to a splitting of the double tangent bundle TTM into horizontal and vertical bundles:

The geodesic spray is the unique horizontal vector field W satisfying

at each point v ∈ TM; here π : TTM → TM denotes the pushforward (differential) along the projection π : TM → M associated to the tangent bundle.

More generally, the same construction allows one to construct a vector field for any Ehresmann connection on the tangent bundle. For the resulting vector field to be a spray (on the deleted tangent bundle TM \ {0}) it is enough that the connection be equivariant under positive rescalings: it need not be linear. That is, (cf. Ehresmann connection#Vector bundles and covariant derivatives) it is enough that the horizontal distribution satisfy

for every X ∈ TM \ {0} and λ > 0. Here d(Sλ) is the pushforward along the scalar homothety A particular case of a non-linear connection arising in this manner is that associated to a Finsler manifold.

Affine and projective geodesics

Equation (Template:EquationNote) is invariant under affine reparameterizations; that is, parameterizations of the form

where a and b are constant real numbers. Thus apart from specifying a certain class of embedded curves, the geodesic equation also determines a preferred class of parameterizations on each of the curves. Accordingly, solutions of (Template:EquationNote) are called geodesics with affine parameter.

An affine connection is determined by its family of affinely parameterized geodesics, up to torsion Template:Harv. The torsion itself does not, in fact, affect the family of geodesics, since the geodesic equation depends only on the symmetric part of the connection. More precisely, if are two connections such that the difference tensor

is skew-symmetric, then and have the same geodesics, with the same affine parameterizations. Furthermore, there is a unique connection having the same geodesics as , but with vanishing torsion.

Geodesics without a particular parameterization are described by a projective connection.

See also

References

  • Many property agents need to declare for the PIC grant in Singapore. However, not all of them know find out how to do the correct process for getting this PIC scheme from the IRAS. There are a number of steps that you need to do before your software can be approved.

    Naturally, you will have to pay a safety deposit and that is usually one month rent for annually of the settlement. That is the place your good religion deposit will likely be taken into account and will kind part or all of your security deposit. Anticipate to have a proportionate amount deducted out of your deposit if something is discovered to be damaged if you move out. It's best to you'll want to test the inventory drawn up by the owner, which can detail all objects in the property and their condition. If you happen to fail to notice any harm not already mentioned within the inventory before transferring in, you danger having to pay for it yourself.

    In case you are in search of an actual estate or Singapore property agent on-line, you simply should belief your intuition. It's because you do not know which agent is nice and which agent will not be. Carry out research on several brokers by looking out the internet. As soon as if you end up positive that a selected agent is dependable and reliable, you can choose to utilize his partnerise in finding you a home in Singapore. Most of the time, a property agent is taken into account to be good if he or she locations the contact data on his website. This may mean that the agent does not mind you calling them and asking them any questions relating to new properties in singapore in Singapore. After chatting with them you too can see them in their office after taking an appointment.

    Have handed an trade examination i.e Widespread Examination for House Brokers (CEHA) or Actual Property Agency (REA) examination, or equal; Exclusive brokers are extra keen to share listing information thus making certain the widest doable coverage inside the real estate community via Multiple Listings and Networking. Accepting a severe provide is simpler since your agent is totally conscious of all advertising activity related with your property. This reduces your having to check with a number of agents for some other offers. Price control is easily achieved. Paint work in good restore-discuss with your Property Marketing consultant if main works are still to be done. Softening in residential property prices proceed, led by 2.8 per cent decline within the index for Remainder of Central Region

    Once you place down the one per cent choice price to carry down a non-public property, it's important to accept its situation as it is whenever you move in – faulty air-con, choked rest room and all. Get round this by asking your agent to incorporate a ultimate inspection clause within the possibility-to-buy letter. HDB flat patrons routinely take pleasure in this security net. "There's a ultimate inspection of the property two days before the completion of all HDB transactions. If the air-con is defective, you can request the seller to repair it," says Kelvin.

    15.6.1 As the agent is an intermediary, generally, as soon as the principal and third party are introduced right into a contractual relationship, the agent drops out of the image, subject to any problems with remuneration or indemnification that he could have against the principal, and extra exceptionally, against the third occasion. Generally, agents are entitled to be indemnified for all liabilities reasonably incurred within the execution of the brokers´ authority.

    To achieve the very best outcomes, you must be always updated on market situations, including past transaction information and reliable projections. You could review and examine comparable homes that are currently available in the market, especially these which have been sold or not bought up to now six months. You'll be able to see a pattern of such report by clicking here It's essential to defend yourself in opposition to unscrupulous patrons. They are often very skilled in using highly unethical and manipulative techniques to try and lure you into a lure. That you must also protect your self, your loved ones, and personal belongings as you'll be serving many strangers in your home. Sign a listing itemizing of all of the objects provided by the proprietor, together with their situation. HSR Prime Recruiter 2010. See chapter 2.
  • Many property agents need to declare for the PIC grant in Singapore. However, not all of them know find out how to do the correct process for getting this PIC scheme from the IRAS. There are a number of steps that you need to do before your software can be approved.

    Naturally, you will have to pay a safety deposit and that is usually one month rent for annually of the settlement. That is the place your good religion deposit will likely be taken into account and will kind part or all of your security deposit. Anticipate to have a proportionate amount deducted out of your deposit if something is discovered to be damaged if you move out. It's best to you'll want to test the inventory drawn up by the owner, which can detail all objects in the property and their condition. If you happen to fail to notice any harm not already mentioned within the inventory before transferring in, you danger having to pay for it yourself.

    In case you are in search of an actual estate or Singapore property agent on-line, you simply should belief your intuition. It's because you do not know which agent is nice and which agent will not be. Carry out research on several brokers by looking out the internet. As soon as if you end up positive that a selected agent is dependable and reliable, you can choose to utilize his partnerise in finding you a home in Singapore. Most of the time, a property agent is taken into account to be good if he or she locations the contact data on his website. This may mean that the agent does not mind you calling them and asking them any questions relating to new properties in singapore in Singapore. After chatting with them you too can see them in their office after taking an appointment.

    Have handed an trade examination i.e Widespread Examination for House Brokers (CEHA) or Actual Property Agency (REA) examination, or equal; Exclusive brokers are extra keen to share listing information thus making certain the widest doable coverage inside the real estate community via Multiple Listings and Networking. Accepting a severe provide is simpler since your agent is totally conscious of all advertising activity related with your property. This reduces your having to check with a number of agents for some other offers. Price control is easily achieved. Paint work in good restore-discuss with your Property Marketing consultant if main works are still to be done. Softening in residential property prices proceed, led by 2.8 per cent decline within the index for Remainder of Central Region

    Once you place down the one per cent choice price to carry down a non-public property, it's important to accept its situation as it is whenever you move in – faulty air-con, choked rest room and all. Get round this by asking your agent to incorporate a ultimate inspection clause within the possibility-to-buy letter. HDB flat patrons routinely take pleasure in this security net. "There's a ultimate inspection of the property two days before the completion of all HDB transactions. If the air-con is defective, you can request the seller to repair it," says Kelvin.

    15.6.1 As the agent is an intermediary, generally, as soon as the principal and third party are introduced right into a contractual relationship, the agent drops out of the image, subject to any problems with remuneration or indemnification that he could have against the principal, and extra exceptionally, against the third occasion. Generally, agents are entitled to be indemnified for all liabilities reasonably incurred within the execution of the brokers´ authority.

    To achieve the very best outcomes, you must be always updated on market situations, including past transaction information and reliable projections. You could review and examine comparable homes that are currently available in the market, especially these which have been sold or not bought up to now six months. You'll be able to see a pattern of such report by clicking here It's essential to defend yourself in opposition to unscrupulous patrons. They are often very skilled in using highly unethical and manipulative techniques to try and lure you into a lure. That you must also protect your self, your loved ones, and personal belongings as you'll be serving many strangers in your home. Sign a listing itemizing of all of the objects provided by the proprietor, together with their situation. HSR Prime Recruiter 2010. See section 2.7.
  • Many property agents need to declare for the PIC grant in Singapore. However, not all of them know find out how to do the correct process for getting this PIC scheme from the IRAS. There are a number of steps that you need to do before your software can be approved.

    Naturally, you will have to pay a safety deposit and that is usually one month rent for annually of the settlement. That is the place your good religion deposit will likely be taken into account and will kind part or all of your security deposit. Anticipate to have a proportionate amount deducted out of your deposit if something is discovered to be damaged if you move out. It's best to you'll want to test the inventory drawn up by the owner, which can detail all objects in the property and their condition. If you happen to fail to notice any harm not already mentioned within the inventory before transferring in, you danger having to pay for it yourself.

    In case you are in search of an actual estate or Singapore property agent on-line, you simply should belief your intuition. It's because you do not know which agent is nice and which agent will not be. Carry out research on several brokers by looking out the internet. As soon as if you end up positive that a selected agent is dependable and reliable, you can choose to utilize his partnerise in finding you a home in Singapore. Most of the time, a property agent is taken into account to be good if he or she locations the contact data on his website. This may mean that the agent does not mind you calling them and asking them any questions relating to new properties in singapore in Singapore. After chatting with them you too can see them in their office after taking an appointment.

    Have handed an trade examination i.e Widespread Examination for House Brokers (CEHA) or Actual Property Agency (REA) examination, or equal; Exclusive brokers are extra keen to share listing information thus making certain the widest doable coverage inside the real estate community via Multiple Listings and Networking. Accepting a severe provide is simpler since your agent is totally conscious of all advertising activity related with your property. This reduces your having to check with a number of agents for some other offers. Price control is easily achieved. Paint work in good restore-discuss with your Property Marketing consultant if main works are still to be done. Softening in residential property prices proceed, led by 2.8 per cent decline within the index for Remainder of Central Region

    Once you place down the one per cent choice price to carry down a non-public property, it's important to accept its situation as it is whenever you move in – faulty air-con, choked rest room and all. Get round this by asking your agent to incorporate a ultimate inspection clause within the possibility-to-buy letter. HDB flat patrons routinely take pleasure in this security net. "There's a ultimate inspection of the property two days before the completion of all HDB transactions. If the air-con is defective, you can request the seller to repair it," says Kelvin.

    15.6.1 As the agent is an intermediary, generally, as soon as the principal and third party are introduced right into a contractual relationship, the agent drops out of the image, subject to any problems with remuneration or indemnification that he could have against the principal, and extra exceptionally, against the third occasion. Generally, agents are entitled to be indemnified for all liabilities reasonably incurred within the execution of the brokers´ authority.

    To achieve the very best outcomes, you must be always updated on market situations, including past transaction information and reliable projections. You could review and examine comparable homes that are currently available in the market, especially these which have been sold or not bought up to now six months. You'll be able to see a pattern of such report by clicking here It's essential to defend yourself in opposition to unscrupulous patrons. They are often very skilled in using highly unethical and manipulative techniques to try and lure you into a lure. That you must also protect your self, your loved ones, and personal belongings as you'll be serving many strangers in your home. Sign a listing itemizing of all of the objects provided by the proprietor, together with their situation. HSR Prime Recruiter 2010. See section 1.4.
  • Many property agents need to declare for the PIC grant in Singapore. However, not all of them know find out how to do the correct process for getting this PIC scheme from the IRAS. There are a number of steps that you need to do before your software can be approved.

    Naturally, you will have to pay a safety deposit and that is usually one month rent for annually of the settlement. That is the place your good religion deposit will likely be taken into account and will kind part or all of your security deposit. Anticipate to have a proportionate amount deducted out of your deposit if something is discovered to be damaged if you move out. It's best to you'll want to test the inventory drawn up by the owner, which can detail all objects in the property and their condition. If you happen to fail to notice any harm not already mentioned within the inventory before transferring in, you danger having to pay for it yourself.

    In case you are in search of an actual estate or Singapore property agent on-line, you simply should belief your intuition. It's because you do not know which agent is nice and which agent will not be. Carry out research on several brokers by looking out the internet. As soon as if you end up positive that a selected agent is dependable and reliable, you can choose to utilize his partnerise in finding you a home in Singapore. Most of the time, a property agent is taken into account to be good if he or she locations the contact data on his website. This may mean that the agent does not mind you calling them and asking them any questions relating to new properties in singapore in Singapore. After chatting with them you too can see them in their office after taking an appointment.

    Have handed an trade examination i.e Widespread Examination for House Brokers (CEHA) or Actual Property Agency (REA) examination, or equal; Exclusive brokers are extra keen to share listing information thus making certain the widest doable coverage inside the real estate community via Multiple Listings and Networking. Accepting a severe provide is simpler since your agent is totally conscious of all advertising activity related with your property. This reduces your having to check with a number of agents for some other offers. Price control is easily achieved. Paint work in good restore-discuss with your Property Marketing consultant if main works are still to be done. Softening in residential property prices proceed, led by 2.8 per cent decline within the index for Remainder of Central Region

    Once you place down the one per cent choice price to carry down a non-public property, it's important to accept its situation as it is whenever you move in – faulty air-con, choked rest room and all. Get round this by asking your agent to incorporate a ultimate inspection clause within the possibility-to-buy letter. HDB flat patrons routinely take pleasure in this security net. "There's a ultimate inspection of the property two days before the completion of all HDB transactions. If the air-con is defective, you can request the seller to repair it," says Kelvin.

    15.6.1 As the agent is an intermediary, generally, as soon as the principal and third party are introduced right into a contractual relationship, the agent drops out of the image, subject to any problems with remuneration or indemnification that he could have against the principal, and extra exceptionally, against the third occasion. Generally, agents are entitled to be indemnified for all liabilities reasonably incurred within the execution of the brokers´ authority.

    To achieve the very best outcomes, you must be always updated on market situations, including past transaction information and reliable projections. You could review and examine comparable homes that are currently available in the market, especially these which have been sold or not bought up to now six months. You'll be able to see a pattern of such report by clicking here It's essential to defend yourself in opposition to unscrupulous patrons. They are often very skilled in using highly unethical and manipulative techniques to try and lure you into a lure. That you must also protect your self, your loved ones, and personal belongings as you'll be serving many strangers in your home. Sign a listing itemizing of all of the objects provided by the proprietor, together with their situation. HSR Prime Recruiter 2010.
  • Many property agents need to declare for the PIC grant in Singapore. However, not all of them know find out how to do the correct process for getting this PIC scheme from the IRAS. There are a number of steps that you need to do before your software can be approved.

    Naturally, you will have to pay a safety deposit and that is usually one month rent for annually of the settlement. That is the place your good religion deposit will likely be taken into account and will kind part or all of your security deposit. Anticipate to have a proportionate amount deducted out of your deposit if something is discovered to be damaged if you move out. It's best to you'll want to test the inventory drawn up by the owner, which can detail all objects in the property and their condition. If you happen to fail to notice any harm not already mentioned within the inventory before transferring in, you danger having to pay for it yourself.

    In case you are in search of an actual estate or Singapore property agent on-line, you simply should belief your intuition. It's because you do not know which agent is nice and which agent will not be. Carry out research on several brokers by looking out the internet. As soon as if you end up positive that a selected agent is dependable and reliable, you can choose to utilize his partnerise in finding you a home in Singapore. Most of the time, a property agent is taken into account to be good if he or she locations the contact data on his website. This may mean that the agent does not mind you calling them and asking them any questions relating to new properties in singapore in Singapore. After chatting with them you too can see them in their office after taking an appointment.

    Have handed an trade examination i.e Widespread Examination for House Brokers (CEHA) or Actual Property Agency (REA) examination, or equal; Exclusive brokers are extra keen to share listing information thus making certain the widest doable coverage inside the real estate community via Multiple Listings and Networking. Accepting a severe provide is simpler since your agent is totally conscious of all advertising activity related with your property. This reduces your having to check with a number of agents for some other offers. Price control is easily achieved. Paint work in good restore-discuss with your Property Marketing consultant if main works are still to be done. Softening in residential property prices proceed, led by 2.8 per cent decline within the index for Remainder of Central Region

    Once you place down the one per cent choice price to carry down a non-public property, it's important to accept its situation as it is whenever you move in – faulty air-con, choked rest room and all. Get round this by asking your agent to incorporate a ultimate inspection clause within the possibility-to-buy letter. HDB flat patrons routinely take pleasure in this security net. "There's a ultimate inspection of the property two days before the completion of all HDB transactions. If the air-con is defective, you can request the seller to repair it," says Kelvin.

    15.6.1 As the agent is an intermediary, generally, as soon as the principal and third party are introduced right into a contractual relationship, the agent drops out of the image, subject to any problems with remuneration or indemnification that he could have against the principal, and extra exceptionally, against the third occasion. Generally, agents are entitled to be indemnified for all liabilities reasonably incurred within the execution of the brokers´ authority.

    To achieve the very best outcomes, you must be always updated on market situations, including past transaction information and reliable projections. You could review and examine comparable homes that are currently available in the market, especially these which have been sold or not bought up to now six months. You'll be able to see a pattern of such report by clicking here It's essential to defend yourself in opposition to unscrupulous patrons. They are often very skilled in using highly unethical and manipulative techniques to try and lure you into a lure. That you must also protect your self, your loved ones, and personal belongings as you'll be serving many strangers in your home. Sign a listing itemizing of all of the objects provided by the proprietor, together with their situation. HSR Prime Recruiter 2010. See section 87.
  • Many property agents need to declare for the PIC grant in Singapore. However, not all of them know find out how to do the correct process for getting this PIC scheme from the IRAS. There are a number of steps that you need to do before your software can be approved.

    Naturally, you will have to pay a safety deposit and that is usually one month rent for annually of the settlement. That is the place your good religion deposit will likely be taken into account and will kind part or all of your security deposit. Anticipate to have a proportionate amount deducted out of your deposit if something is discovered to be damaged if you move out. It's best to you'll want to test the inventory drawn up by the owner, which can detail all objects in the property and their condition. If you happen to fail to notice any harm not already mentioned within the inventory before transferring in, you danger having to pay for it yourself.

    In case you are in search of an actual estate or Singapore property agent on-line, you simply should belief your intuition. It's because you do not know which agent is nice and which agent will not be. Carry out research on several brokers by looking out the internet. As soon as if you end up positive that a selected agent is dependable and reliable, you can choose to utilize his partnerise in finding you a home in Singapore. Most of the time, a property agent is taken into account to be good if he or she locations the contact data on his website. This may mean that the agent does not mind you calling them and asking them any questions relating to new properties in singapore in Singapore. After chatting with them you too can see them in their office after taking an appointment.

    Have handed an trade examination i.e Widespread Examination for House Brokers (CEHA) or Actual Property Agency (REA) examination, or equal; Exclusive brokers are extra keen to share listing information thus making certain the widest doable coverage inside the real estate community via Multiple Listings and Networking. Accepting a severe provide is simpler since your agent is totally conscious of all advertising activity related with your property. This reduces your having to check with a number of agents for some other offers. Price control is easily achieved. Paint work in good restore-discuss with your Property Marketing consultant if main works are still to be done. Softening in residential property prices proceed, led by 2.8 per cent decline within the index for Remainder of Central Region

    Once you place down the one per cent choice price to carry down a non-public property, it's important to accept its situation as it is whenever you move in – faulty air-con, choked rest room and all. Get round this by asking your agent to incorporate a ultimate inspection clause within the possibility-to-buy letter. HDB flat patrons routinely take pleasure in this security net. "There's a ultimate inspection of the property two days before the completion of all HDB transactions. If the air-con is defective, you can request the seller to repair it," says Kelvin.

    15.6.1 As the agent is an intermediary, generally, as soon as the principal and third party are introduced right into a contractual relationship, the agent drops out of the image, subject to any problems with remuneration or indemnification that he could have against the principal, and extra exceptionally, against the third occasion. Generally, agents are entitled to be indemnified for all liabilities reasonably incurred within the execution of the brokers´ authority.

    To achieve the very best outcomes, you must be always updated on market situations, including past transaction information and reliable projections. You could review and examine comparable homes that are currently available in the market, especially these which have been sold or not bought up to now six months. You'll be able to see a pattern of such report by clicking here It's essential to defend yourself in opposition to unscrupulous patrons. They are often very skilled in using highly unethical and manipulative techniques to try and lure you into a lure. That you must also protect your self, your loved ones, and personal belongings as you'll be serving many strangers in your home. Sign a listing itemizing of all of the objects provided by the proprietor, together with their situation. HSR Prime Recruiter 2010
  • Many property agents need to declare for the PIC grant in Singapore. However, not all of them know find out how to do the correct process for getting this PIC scheme from the IRAS. There are a number of steps that you need to do before your software can be approved.

    Naturally, you will have to pay a safety deposit and that is usually one month rent for annually of the settlement. That is the place your good religion deposit will likely be taken into account and will kind part or all of your security deposit. Anticipate to have a proportionate amount deducted out of your deposit if something is discovered to be damaged if you move out. It's best to you'll want to test the inventory drawn up by the owner, which can detail all objects in the property and their condition. If you happen to fail to notice any harm not already mentioned within the inventory before transferring in, you danger having to pay for it yourself.

    In case you are in search of an actual estate or Singapore property agent on-line, you simply should belief your intuition. It's because you do not know which agent is nice and which agent will not be. Carry out research on several brokers by looking out the internet. As soon as if you end up positive that a selected agent is dependable and reliable, you can choose to utilize his partnerise in finding you a home in Singapore. Most of the time, a property agent is taken into account to be good if he or she locations the contact data on his website. This may mean that the agent does not mind you calling them and asking them any questions relating to new properties in singapore in Singapore. After chatting with them you too can see them in their office after taking an appointment.

    Have handed an trade examination i.e Widespread Examination for House Brokers (CEHA) or Actual Property Agency (REA) examination, or equal; Exclusive brokers are extra keen to share listing information thus making certain the widest doable coverage inside the real estate community via Multiple Listings and Networking. Accepting a severe provide is simpler since your agent is totally conscious of all advertising activity related with your property. This reduces your having to check with a number of agents for some other offers. Price control is easily achieved. Paint work in good restore-discuss with your Property Marketing consultant if main works are still to be done. Softening in residential property prices proceed, led by 2.8 per cent decline within the index for Remainder of Central Region

    Once you place down the one per cent choice price to carry down a non-public property, it's important to accept its situation as it is whenever you move in – faulty air-con, choked rest room and all. Get round this by asking your agent to incorporate a ultimate inspection clause within the possibility-to-buy letter. HDB flat patrons routinely take pleasure in this security net. "There's a ultimate inspection of the property two days before the completion of all HDB transactions. If the air-con is defective, you can request the seller to repair it," says Kelvin.

    15.6.1 As the agent is an intermediary, generally, as soon as the principal and third party are introduced right into a contractual relationship, the agent drops out of the image, subject to any problems with remuneration or indemnification that he could have against the principal, and extra exceptionally, against the third occasion. Generally, agents are entitled to be indemnified for all liabilities reasonably incurred within the execution of the brokers´ authority.

    To achieve the very best outcomes, you must be always updated on market situations, including past transaction information and reliable projections. You could review and examine comparable homes that are currently available in the market, especially these which have been sold or not bought up to now six months. You'll be able to see a pattern of such report by clicking here It's essential to defend yourself in opposition to unscrupulous patrons. They are often very skilled in using highly unethical and manipulative techniques to try and lure you into a lure. That you must also protect your self, your loved ones, and personal belongings as you'll be serving many strangers in your home. Sign a listing itemizing of all of the objects provided by the proprietor, together with their situation. HSR Prime Recruiter 2010. Note especially pages 7 and 10.
  • Many property agents need to declare for the PIC grant in Singapore. However, not all of them know find out how to do the correct process for getting this PIC scheme from the IRAS. There are a number of steps that you need to do before your software can be approved.

    Naturally, you will have to pay a safety deposit and that is usually one month rent for annually of the settlement. That is the place your good religion deposit will likely be taken into account and will kind part or all of your security deposit. Anticipate to have a proportionate amount deducted out of your deposit if something is discovered to be damaged if you move out. It's best to you'll want to test the inventory drawn up by the owner, which can detail all objects in the property and their condition. If you happen to fail to notice any harm not already mentioned within the inventory before transferring in, you danger having to pay for it yourself.

    In case you are in search of an actual estate or Singapore property agent on-line, you simply should belief your intuition. It's because you do not know which agent is nice and which agent will not be. Carry out research on several brokers by looking out the internet. As soon as if you end up positive that a selected agent is dependable and reliable, you can choose to utilize his partnerise in finding you a home in Singapore. Most of the time, a property agent is taken into account to be good if he or she locations the contact data on his website. This may mean that the agent does not mind you calling them and asking them any questions relating to new properties in singapore in Singapore. After chatting with them you too can see them in their office after taking an appointment.

    Have handed an trade examination i.e Widespread Examination for House Brokers (CEHA) or Actual Property Agency (REA) examination, or equal; Exclusive brokers are extra keen to share listing information thus making certain the widest doable coverage inside the real estate community via Multiple Listings and Networking. Accepting a severe provide is simpler since your agent is totally conscious of all advertising activity related with your property. This reduces your having to check with a number of agents for some other offers. Price control is easily achieved. Paint work in good restore-discuss with your Property Marketing consultant if main works are still to be done. Softening in residential property prices proceed, led by 2.8 per cent decline within the index for Remainder of Central Region

    Once you place down the one per cent choice price to carry down a non-public property, it's important to accept its situation as it is whenever you move in – faulty air-con, choked rest room and all. Get round this by asking your agent to incorporate a ultimate inspection clause within the possibility-to-buy letter. HDB flat patrons routinely take pleasure in this security net. "There's a ultimate inspection of the property two days before the completion of all HDB transactions. If the air-con is defective, you can request the seller to repair it," says Kelvin.

    15.6.1 As the agent is an intermediary, generally, as soon as the principal and third party are introduced right into a contractual relationship, the agent drops out of the image, subject to any problems with remuneration or indemnification that he could have against the principal, and extra exceptionally, against the third occasion. Generally, agents are entitled to be indemnified for all liabilities reasonably incurred within the execution of the brokers´ authority.

    To achieve the very best outcomes, you must be always updated on market situations, including past transaction information and reliable projections. You could review and examine comparable homes that are currently available in the market, especially these which have been sold or not bought up to now six months. You'll be able to see a pattern of such report by clicking here It's essential to defend yourself in opposition to unscrupulous patrons. They are often very skilled in using highly unethical and manipulative techniques to try and lure you into a lure. That you must also protect your self, your loved ones, and personal belongings as you'll be serving many strangers in your home. Sign a listing itemizing of all of the objects provided by the proprietor, together with their situation. HSR Prime Recruiter 2010
  • Other Sports Official Kull from Drumheller, has hobbies such as telescopes, property developers in singapore and crocheting. Identified some interesting places having spent 4 months at Saloum Delta.

    my web-site http://himerka.com/.
  • Many property agents need to declare for the PIC grant in Singapore. However, not all of them know find out how to do the correct process for getting this PIC scheme from the IRAS. There are a number of steps that you need to do before your software can be approved.

    Naturally, you will have to pay a safety deposit and that is usually one month rent for annually of the settlement. That is the place your good religion deposit will likely be taken into account and will kind part or all of your security deposit. Anticipate to have a proportionate amount deducted out of your deposit if something is discovered to be damaged if you move out. It's best to you'll want to test the inventory drawn up by the owner, which can detail all objects in the property and their condition. If you happen to fail to notice any harm not already mentioned within the inventory before transferring in, you danger having to pay for it yourself.

    In case you are in search of an actual estate or Singapore property agent on-line, you simply should belief your intuition. It's because you do not know which agent is nice and which agent will not be. Carry out research on several brokers by looking out the internet. As soon as if you end up positive that a selected agent is dependable and reliable, you can choose to utilize his partnerise in finding you a home in Singapore. Most of the time, a property agent is taken into account to be good if he or she locations the contact data on his website. This may mean that the agent does not mind you calling them and asking them any questions relating to new properties in singapore in Singapore. After chatting with them you too can see them in their office after taking an appointment.

    Have handed an trade examination i.e Widespread Examination for House Brokers (CEHA) or Actual Property Agency (REA) examination, or equal; Exclusive brokers are extra keen to share listing information thus making certain the widest doable coverage inside the real estate community via Multiple Listings and Networking. Accepting a severe provide is simpler since your agent is totally conscious of all advertising activity related with your property. This reduces your having to check with a number of agents for some other offers. Price control is easily achieved. Paint work in good restore-discuss with your Property Marketing consultant if main works are still to be done. Softening in residential property prices proceed, led by 2.8 per cent decline within the index for Remainder of Central Region

    Once you place down the one per cent choice price to carry down a non-public property, it's important to accept its situation as it is whenever you move in – faulty air-con, choked rest room and all. Get round this by asking your agent to incorporate a ultimate inspection clause within the possibility-to-buy letter. HDB flat patrons routinely take pleasure in this security net. "There's a ultimate inspection of the property two days before the completion of all HDB transactions. If the air-con is defective, you can request the seller to repair it," says Kelvin.

    15.6.1 As the agent is an intermediary, generally, as soon as the principal and third party are introduced right into a contractual relationship, the agent drops out of the image, subject to any problems with remuneration or indemnification that he could have against the principal, and extra exceptionally, against the third occasion. Generally, agents are entitled to be indemnified for all liabilities reasonably incurred within the execution of the brokers´ authority.

    To achieve the very best outcomes, you must be always updated on market situations, including past transaction information and reliable projections. You could review and examine comparable homes that are currently available in the market, especially these which have been sold or not bought up to now six months. You'll be able to see a pattern of such report by clicking here It's essential to defend yourself in opposition to unscrupulous patrons. They are often very skilled in using highly unethical and manipulative techniques to try and lure you into a lure. That you must also protect your self, your loved ones, and personal belongings as you'll be serving many strangers in your home. Sign a listing itemizing of all of the objects provided by the proprietor, together with their situation. HSR Prime Recruiter 2010. See chapter 3.

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