nondiscrete topology
1Topological group — Concepts in group theory category of groups subgroups, normal subgroups group homomorphisms, kernel, image, quotient direct product, direct sum semidirect product, wreath product …
2Examples of groups — Some elementary examples of groups in mathematics are given on Group (mathematics). Further examples are listed here. Contents 1 Permutations of a set of three elements 2 The group of translations of the plane 3 The symme …
