plural of group stage

plural of block group

(topology, category theory) A topological group that is isomorphic to the inverse limit of some inverse system of discrete finite groups; equivalently, a topological group that is also a Stone space.

plural of year-group

plural of profinite group

Alternative form of yeargroup

plural of automorphism group

(group theory) The group of automorphisms of a given set or other mathematical object, with the group operation being function composition.

plural of Brauer group

(mathematics) For a field K, an abelian group whose elements are Morita equivalence classes of central simple algebras over K, with addition given by the tensor product of algebras.