Sizes of quotient spaces of certain function algebras on topological semigroups

Dzinotyiweyi, Heneri A. M.

Compositio Mathematica, Volume 55 (1985) p. 303-311

The cardinality of the set of invariant means on a locally compact topological semigroup

Dzinotyiweyi, Heneri A. M.

Compositio Mathematica, Volume 54 (1985) p. 41-49