Embedding topological semigroups in topological groups |
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Authors: | Francis T Christoph Jr |
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Institution: | (1) Temple University, 19122 Philadelphia, Pennsylvania |
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Abstract: | In 6] Rothman investigated the problem of embedding a topological semigroup in a topological group. He defined a concept
calledProperty F and showed that Property F is a necessary and sufficient condition for embedding a commutative, cancellative topological
semigroup in its group of quotients as an open subset. This paper announces a generalization of Rothman’s result by definingProperty E and stating that a completely regular topological semigroup S can be embedded in a topological group by a topological isomorphism
if and only if S can be embedded (algebraically) in a group and S has Property E. Property E is defined by first constructing
a free topological semigroup (Theorem 1.1). This construction resembles the one in 4] for a free topological group. Full
details, examples, and other embedding results will appear elsewhere.
Some of the results in this paper were contained in the author’s doctoral dissertation written at Rutgers University under
Professor Louis F. McAuley. |
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