From formulasearchengine
Jump to navigation Jump to search

In algebra, the commutant of a subset S of a semigroup (such as an algebra or a group) A is the subset S′ of elements of A commuting with every element of S.[1] In other words,

S′ forms a subsemigroup. This generalizes the concept of centralizer in group theory.


See also


  1. {{#invoke:citation/CS1|citation |CitationClass=book }}