Startseite On monoids of monotone injective partial selfmaps of integers with cofinite domains and images
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On monoids of monotone injective partial selfmaps of integers with cofinite domains and images

  • Oleg Gutik EMAIL logo und Dušan Repovš
Veröffentlicht/Copyright: 18. September 2012
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Abstract.

We study the semigroup of monotone injective partial selfmaps of the set of integers having cofinite domain and image. We show that is bisimple and all of its non-trivial semigroup homomorphisms are either isomorphisms or group homomorphisms. We also prove that every Baire topology on , such that is a Hausdorff semitopological semigroup, is discrete and we construct a non-discrete Hausdorff inverse semigroup topology on . We show that the discrete semigroup cannot be embedded into some classes of compact-like topological semigroups and that its remainder under the closure in a topological semigroup S is an ideal in S.

Received: 2011-04-26
Revised: 2012-04-01
Published Online: 2012-09-18
Published in Print: 2012-09-01

© 2012 by Walter de Gruyter Berlin Boston

Heruntergeladen am 26.9.2025 von https://www.degruyterbrill.com/document/doi/10.1515/gmj-2012-0022/html
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