Assertion: abelian group's subgroup | /r/AtLocation | the center
Facets:
value: of g
type: LOCATION
Source sentences:
text: Analogues of Heisenberg groups over finite fields of odd prime order p are called extra special groups, or more properly, extra special groups of exponent p. More generally, if the derived subgroup of a group G is contained in the center Z of G, then the map from G/Z × G/Z → Z is a skew-symmetric bilinear operator on abelian groups.