Automaton semigroups: New constructions results and examples of non-automaton semigroups

Detalhes bibliográficos
Autor(a) principal: Brough, Tara
Data de Publicação: 2017
Outros Autores: Cain, Alan J.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: https://doi.org/10.1016/j.tcs.2017.02.003
Resumo: FCT exploratory project IF/01622/2013/CP1161/CT0001. FCT fellowship (IF/01622/2013/CP1161/CT0001).
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spelling Automaton semigroups: New constructions results and examples of non-automaton semigroupsAutomaton semigroupConstructionsFree productSmall extensionsWreath productTheoretical Computer ScienceComputer Science(all)FCT exploratory project IF/01622/2013/CP1161/CT0001. FCT fellowship (IF/01622/2013/CP1161/CT0001).This paper studies the class of automaton semigroups from two perspectives: closure under constructions, and examples of semigroups that are not automaton semigroups. We prove that (semigroup) free products of finite semigroups always arise as automaton semigroups, and that the class of automaton monoids is closed under forming wreath products with finite monoids. We also consider closure under certain kinds of Rees matrix constructions, strong semilattices, and small extensions. Finally, we prove that no subsemigroup of (N,+) arises as an automaton semigroup. (Previously, (N,+) itself was the unique example of a semigroup having the ‘general’ properties of automaton semigroups (such as residual finiteness, solvable word problem, etc.) but that was known not to arise as an automaton semigroup.)CMA - Centro de Matemática e AplicaçõesRUNBrough, TaraCain, Alan J.2019-07-12T22:28:30Z2017-04-252017-04-25T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article15application/pdfhttps://doi.org/10.1016/j.tcs.2017.02.003eng0304-3975PURE: 3804936http://www.scopus.com/inward/record.url?scp=85015758537&partnerID=8YFLogxKhttps://doi.org/10.1016/j.tcs.2017.02.003info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-03-11T04:34:28Zoai:run.unl.pt:10362/75289Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T03:35:30.429313Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Automaton semigroups: New constructions results and examples of non-automaton semigroups
title Automaton semigroups: New constructions results and examples of non-automaton semigroups
spellingShingle Automaton semigroups: New constructions results and examples of non-automaton semigroups
Brough, Tara
Automaton semigroup
Constructions
Free product
Small extensions
Wreath product
Theoretical Computer Science
Computer Science(all)
title_short Automaton semigroups: New constructions results and examples of non-automaton semigroups
title_full Automaton semigroups: New constructions results and examples of non-automaton semigroups
title_fullStr Automaton semigroups: New constructions results and examples of non-automaton semigroups
title_full_unstemmed Automaton semigroups: New constructions results and examples of non-automaton semigroups
title_sort Automaton semigroups: New constructions results and examples of non-automaton semigroups
author Brough, Tara
author_facet Brough, Tara
Cain, Alan J.
author_role author
author2 Cain, Alan J.
author2_role author
dc.contributor.none.fl_str_mv CMA - Centro de Matemática e Aplicações
RUN
dc.contributor.author.fl_str_mv Brough, Tara
Cain, Alan J.
dc.subject.por.fl_str_mv Automaton semigroup
Constructions
Free product
Small extensions
Wreath product
Theoretical Computer Science
Computer Science(all)
topic Automaton semigroup
Constructions
Free product
Small extensions
Wreath product
Theoretical Computer Science
Computer Science(all)
description FCT exploratory project IF/01622/2013/CP1161/CT0001. FCT fellowship (IF/01622/2013/CP1161/CT0001).
publishDate 2017
dc.date.none.fl_str_mv 2017-04-25
2017-04-25T00:00:00Z
2019-07-12T22:28:30Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
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url https://doi.org/10.1016/j.tcs.2017.02.003
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 0304-3975
PURE: 3804936
http://www.scopus.com/inward/record.url?scp=85015758537&partnerID=8YFLogxK
https://doi.org/10.1016/j.tcs.2017.02.003
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