Abstract
Gluskin [2] has shown that if α is an isomorphism of a weakly reductive semigroup S onto a semigroup T, if V is a dense extension of S and T is densely embedded in W then α extends uniquely to an isomorphism of V into W. Here we consider the problem of extending epimorphisms and as a consequence of a few simple observations obtain as the main theorem a homomorphism of Ω(S), for any semisimple semigroup S, into the product of the translational hulls of the principal factors of S. A few consequences are considered.
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