Measuring cones and other thick subsets in free groups

In this paper we investigate the special automata over finite rank free groups and estimate asymptotic characteristics of sets they accept‎. ‎We show how one can decompose an arbitrary regular subset of a finite rank free group into disjoint union of sets accepted by special automata or special mono...

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Main Authors: Elizaveta Frenkel, Vladimir Remeslennikov
Format: Article
Language:English
Published: University of Isfahan 2018-12-01
Series:International Journal of Group Theory
Subjects:
Online Access:http://ijgt.ui.ac.ir/article_21479_33235e249efcf4f459180ac8cdea5176.pdf
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spelling doaj-7c4e93b30b6848848b2329b59c4b39402020-11-25T00:42:24ZengUniversity of IsfahanInternational Journal of Group Theory2251-76502251-76692018-12-0174274010.22108/ijgt.2017.2147921479Measuring cones and other thick subsets in free groupsElizaveta Frenkel0Vladimir Remeslennikov1Moscow State UniversityMathematical Institute SB RASIn this paper we investigate the special automata over finite rank free groups and estimate asymptotic characteristics of sets they accept‎. ‎We show how one can decompose an arbitrary regular subset of a finite rank free group into disjoint union of sets accepted by special automata or special monoids‎. ‎These automata allow us to compute explicitly generating functions‎, ‎$lambda-$measures and Cesaro measure of thick monoids‎. ‎Also we improve the asymptotic classification of regular subsets in free groups‎.http://ijgt.ui.ac.ir/article_21479_33235e249efcf4f459180ac8cdea5176.pdffree group‎$lambda-$measureregular subsetspecial automatonthick monoid
collection DOAJ
language English
format Article
sources DOAJ
author Elizaveta Frenkel
Vladimir Remeslennikov
spellingShingle Elizaveta Frenkel
Vladimir Remeslennikov
Measuring cones and other thick subsets in free groups
International Journal of Group Theory
free group
‎$lambda-$measure
regular subset
special automaton
thick monoid
author_facet Elizaveta Frenkel
Vladimir Remeslennikov
author_sort Elizaveta Frenkel
title Measuring cones and other thick subsets in free groups
title_short Measuring cones and other thick subsets in free groups
title_full Measuring cones and other thick subsets in free groups
title_fullStr Measuring cones and other thick subsets in free groups
title_full_unstemmed Measuring cones and other thick subsets in free groups
title_sort measuring cones and other thick subsets in free groups
publisher University of Isfahan
series International Journal of Group Theory
issn 2251-7650
2251-7669
publishDate 2018-12-01
description In this paper we investigate the special automata over finite rank free groups and estimate asymptotic characteristics of sets they accept‎. ‎We show how one can decompose an arbitrary regular subset of a finite rank free group into disjoint union of sets accepted by special automata or special monoids‎. ‎These automata allow us to compute explicitly generating functions‎, ‎$lambda-$measures and Cesaro measure of thick monoids‎. ‎Also we improve the asymptotic classification of regular subsets in free groups‎.
topic free group
‎$lambda-$measure
regular subset
special automaton
thick monoid
url http://ijgt.ui.ac.ir/article_21479_33235e249efcf4f459180ac8cdea5176.pdf
work_keys_str_mv AT elizavetafrenkel measuringconesandotherthicksubsetsinfreegroups
AT vladimirremeslennikov measuringconesandotherthicksubsetsinfreegroups
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