Mathematical group

topological group matrix group quotient group discrete group Permutation group torsion group perfect group ring wreath product abelian group modular group amenable group finitely generated group 3-transposition group ordered group direct product of groups group extension SL2(R) characteristically simple group Thompson sporadic group infinite group multiplicative group subgroup additive group Borel subgroup Covering group covering groups of the alternating and symmetric groups Cremona group cyclically ordered group generalized symmetric group non-abelian group II25,1 Saint Joseph and the Christ Child triangle group locally finite group point groups in three dimensions Suzuki sporadic group T-group thin group hyperbolic group point group symmetry group