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Transactions of the American Mathematical Society
Transactions of the American Mathematical Society
ISSN 1088-6850(online) ISSN 0002-9947(print)


Representations of certain compact semigroups by $ {\rm HL}$-semigroups

Authors: J. H. Carruth and C. E. Clark
Journal: Trans. Amer. Math. Soc. 149 (1970), 327-337
MSC: Primary 22.05
MathSciNet review: 0263964
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Abstract: An HL-semigroup is defined to be a topological semigroup with the property that the Schützenberger group of each $ \mathcal{H}$-class is a Lie group. The following problem is considered: Does a compact semigroup admit enough homomorphisms into HL-semigroups to separate points of S; or equivalently, is S isomorphic to a strict projective limit of HL-semigroups? An affirmative answer is given in the case that S is an irreducible semigroup. If S is irreducible and separable, it is shown that S admits enough homomorphisms into finite dimensional HL-semigroups to separate points of S.

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PII: S 0002-9947(1970)0263964-0
Keywords: Compact semigroup, Lie group, Schützenberger group, H-class, representation, irreducible semigroup, projective limit
Article copyright: © Copyright 1970 American Mathematical Society