Commutator
HomePage
|
Recent Changes
|
Preferences
Showing revision 1
In
mathematics
the
commutator
of two elements
g
and
h
of a
group
is the element
g
-1
h
-1
gh
, often denoted by [
g
,
h
]. It is equal to 1 if and only if
g
and
h
commute.
Commutators are also defined for other
algebraic structures
, especially algebras.