Congruences and Green's relations on regular semigroups
THOMAS E. HALL · Glasgow Mathematical Journal · 1972
It is sometimes possible to reconstruct semigroups from some of their homomorphic images. Some recent examples have been the construction of bisimple inverse semigroups from fundamental bisimple inverse semigroups [9], and the construction of generalized inverse semigroups from inverse semigroups [12].