On the Cohomology of Topological Semigroups

In this short note, we give some new results on continuous bounded cohomology groups of topological semigroups with values in complex field. We show that the second continuous bounded cohomology group of a compact metrizable semigroup, is a Banach space. Also, we study cohomology groups of amenable...

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Main Authors: Maysam Maysami Sadr, Danial Bouzarjomehri Amnieh
Format: Article
Language:English
Published: Emrah Evren KARA 2019-09-01
Series:Communications in Advanced Mathematical Sciences
Subjects:
Online Access:https://dergipark.org.tr/tr/download/article-file/820348
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author Maysam Maysami Sadr
Danial Bouzarjomehri Amnieh
author_facet Maysam Maysami Sadr
Danial Bouzarjomehri Amnieh
author_sort Maysam Maysami Sadr
collection DOAJ
description In this short note, we give some new results on continuous bounded cohomology groups of topological semigroups with values in complex field. We show that the second continuous bounded cohomology group of a compact metrizable semigroup, is a Banach space. Also, we study cohomology groups of amenable topological semigroups, and we show that cohomology groups of rank greater than one of a compact left or right amenable semigroup, are trivial. Also, we give some examples and applications about topological lattices.
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spelling doaj.art-e947efa46a8f48d49a59c2e61bb7506b2024-02-27T04:36:36ZengEmrah Evren KARACommunications in Advanced Mathematical Sciences2651-40012019-09-012320621210.33434/cams.5157111225On the Cohomology of Topological SemigroupsMaysam Maysami Sadr0Danial Bouzarjomehri Amnieh1Institute for Advanced Studies in Basic Sciences (IASBS)Institute for Advanced Studies in Basic Sciences (IASBS)In this short note, we give some new results on continuous bounded cohomology groups of topological semigroups with values in complex field. We show that the second continuous bounded cohomology group of a compact metrizable semigroup, is a Banach space. Also, we study cohomology groups of amenable topological semigroups, and we show that cohomology groups of rank greater than one of a compact left or right amenable semigroup, are trivial. Also, we give some examples and applications about topological lattices.https://dergipark.org.tr/tr/download/article-file/820348topological semigroupbounded cohomologybanach homology
spellingShingle Maysam Maysami Sadr
Danial Bouzarjomehri Amnieh
On the Cohomology of Topological Semigroups
Communications in Advanced Mathematical Sciences
topological semigroup
bounded cohomology
banach homology
title On the Cohomology of Topological Semigroups
title_full On the Cohomology of Topological Semigroups
title_fullStr On the Cohomology of Topological Semigroups
title_full_unstemmed On the Cohomology of Topological Semigroups
title_short On the Cohomology of Topological Semigroups
title_sort on the cohomology of topological semigroups
topic topological semigroup
bounded cohomology
banach homology
url https://dergipark.org.tr/tr/download/article-file/820348
work_keys_str_mv AT maysammaysamisadr onthecohomologyoftopologicalsemigroups
AT danialbouzarjomehriamnieh onthecohomologyoftopologicalsemigroups