plural of income group

plural of algebraic group

(algebraic geometry) A group that is an algebraic variety.

plural of group theory

(US) A small geographical unit that is part of the US censuses

plural of profinite 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.

Alternative form of yeargroup

plural of year-group

plural of automorphism group