Generators and relations for the semigroups of increasing functions on \(\mathbb{N}\) and \(\mathbb{Z}\)

The semigroups of all increasing functions over \(\mathbb{N}\) and  \(\mathbb{Z}\)  are considered. It is shown that both these semigroups do not admit an irreducible system of generators. In their subsemigroups of cofinite functions all irreducible systems of generators are described. The last semi...

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Date:2018
Main Author: Doroshenko, Vadym
Format: Article
Language:English
Published: Lugansk National Taras Shevchenko University 2018
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Online Access:https://admjournal.luguniv.edu.ua/index.php/adm/article/view/941
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Journal Title:Algebra and Discrete Mathematics

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Algebra and Discrete Mathematics
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author Doroshenko, Vadym
author_facet Doroshenko, Vadym
author_sort Doroshenko, Vadym
baseUrl_str
collection OJS
datestamp_date 2018-03-21T06:49:56Z
description The semigroups of all increasing functions over \(\mathbb{N}\) and  \(\mathbb{Z}\)  are considered. It is shown that both these semigroups do not admit an irreducible system of generators. In their subsemigroups of cofinite functions all irreducible systems of generators are described. The last semigroups are presented in terms of generators and relations.
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institution Algebra and Discrete Mathematics
language English
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publisher Lugansk National Taras Shevchenko University
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spelling admjournalluguniveduua-article-9412018-03-21T06:49:56Z Generators and relations for the semigroups of increasing functions on \(\mathbb{N}\) and \(\mathbb{Z}\) Doroshenko, Vadym Order-preserving transformation, monotonic function, generating system, generators and relations, word problem 20M05, 20M20 The semigroups of all increasing functions over \(\mathbb{N}\) and  \(\mathbb{Z}\)  are considered. It is shown that both these semigroups do not admit an irreducible system of generators. In their subsemigroups of cofinite functions all irreducible systems of generators are described. The last semigroups are presented in terms of generators and relations. Lugansk National Taras Shevchenko University 2018-03-21 Article Article Peer-reviewed Article application/pdf https://admjournal.luguniv.edu.ua/index.php/adm/article/view/941 Algebra and Discrete Mathematics; Vol 4, No 4 (2005) 2415-721X 1726-3255 en https://admjournal.luguniv.edu.ua/index.php/adm/article/view/941/470 Copyright (c) 2018 Algebra and Discrete Mathematics
spellingShingle Order-preserving transformation
monotonic function
generating system
generators and relations
word problem
20M05
20M20
Doroshenko, Vadym
Generators and relations for the semigroups of increasing functions on \(\mathbb{N}\) and \(\mathbb{Z}\)
title Generators and relations for the semigroups of increasing functions on \(\mathbb{N}\) and \(\mathbb{Z}\)
title_full Generators and relations for the semigroups of increasing functions on \(\mathbb{N}\) and \(\mathbb{Z}\)
title_fullStr Generators and relations for the semigroups of increasing functions on \(\mathbb{N}\) and \(\mathbb{Z}\)
title_full_unstemmed Generators and relations for the semigroups of increasing functions on \(\mathbb{N}\) and \(\mathbb{Z}\)
title_short Generators and relations for the semigroups of increasing functions on \(\mathbb{N}\) and \(\mathbb{Z}\)
title_sort generators and relations for the semigroups of increasing functions on \(\mathbb{n}\) and \(\mathbb{z}\)
topic Order-preserving transformation
monotonic function
generating system
generators and relations
word problem
20M05
20M20
topic_facet Order-preserving transformation
monotonic function
generating system
generators and relations
word problem
20M05
20M20
url https://admjournal.luguniv.edu.ua/index.php/adm/article/view/941
work_keys_str_mv AT doroshenkovadym generatorsandrelationsforthesemigroupsofincreasingfunctionsonmathbbnandmathbbz