On bisimple weakly inverse semigroups
S. Madhavan · Pacific Journal of Mathematics · 1980
A regular semigroup £ with a commutative subsemigroup of idempotents E is called weakly inverse if for any aeS the set E a of inverses a f of a for which a/a e E is nonempty and for all, a,beS,E ah <^E b E a and