Changes

The '''center''' of a [[Group (mathematics)|group]] G is the set of all elements which [[Commutativity|commute]] with every element of the group.  That is, the center of G is <math>\{a \in G : ab=ba\ \forall b \in G\}</math>.

The '''center''' of a [[Group (mathematics)|group]] <math>G</math> (denoted <math>Z(G)</math>) is the set of all elements which [[Commutativity|commute]] with every element of the group.  That is, the center of <math>G</math> is <math>\{a \in G : ab=ba\ \forall b \in G\}</math>.

==External Links==

==External Links==

*[http://mathworld.wolfram.com/GroupCenter.html Center] on MathWorld

*[http://mathworld.wolfram.com/GroupCenter.html Center] on MathWorld

[[Category:Algebra]]

[[Category:Algebra]]