22Axx Topological and differentiable algebraic systems
{For
topological rings and fields, See 12Jxx, 13Jxx, 16W80;
for dual spaces of operator algebras and topological
groups, See 47D35}
22A05 Structure of general topological groups
22A10 Analysis on general topological groups
22A15 Structure of topological semigroups
22A20 Analysis on topological semigroups
22A22 Topological groupoids (including differentiable and Lie
groupoids)
22A25 Representations of general topological groups and
semigroups
22A26 Topological semilattices, lattices and applications, See
also {06B30, 06B35, 06F30}
22A30 Other topological algebraic systems and their
representations
22A99 None of the above but in this section