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Formations of finite monoids and formal languages: Eilenberg's variety theorem revisited

Formations of finite monoids and formal languages: Eilenberg's variety theorem revisited Abstract We present an extension of Eilenberg's variety theorem, a well-known result connecting algebra to formal languages. We prove that there is a bijective correspondence between formations of finite monoids and certain classes of languages, the formations of languages. Our result permits to treat classes of finite monoids which are not necessarily closed under taking submonoids, contrary to the original theory. We also prove a similar result for ordered monoids. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Forum Mathematicum de Gruyter

Formations of finite monoids and formal languages: Eilenberg's variety theorem revisited

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References (47)

Publisher
de Gruyter
Copyright
Copyright © 2014 by the
ISSN
0933-7741
eISSN
1435-5337
DOI
10.1515/forum-2012-0055
Publisher site
See Article on Publisher Site

Abstract

Abstract We present an extension of Eilenberg's variety theorem, a well-known result connecting algebra to formal languages. We prove that there is a bijective correspondence between formations of finite monoids and certain classes of languages, the formations of languages. Our result permits to treat classes of finite monoids which are not necessarily closed under taking submonoids, contrary to the original theory. We also prove a similar result for ordered monoids.

Journal

Forum Mathematicumde Gruyter

Published: Nov 1, 2014

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