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ACTAC
2008

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$M$-Solid Varieties of Languages

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$M$-Solid Varieties of Languages

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In this paper, a characterization of the language varieties and congruence varieties corresponding to M-solid pseudovarieties is presented. Taking into account the isomorphisms of the Eilenberg-type correspondences, each complete sublattice of pseudovarieties corresponds to a complete sublattice of language varieties, as well as another one of congruence varieties. For the varieties of tree language, we present the complete sublattices of varieties of languages and the complete sublattice of varieties of congruences isomorphic to the complete sublattice of all M-solid pseudovarieties. Key words: Tree languages, Eilenberg-type correspondences, M-solid pseudovarieties, M-solid varieties of languages.

Pedro Baltazar

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ACTAC 2008 | Complete Sublattice | Eilenberg-type Correspondences | M-solid Pseudovarieties |

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Added	08 Dec 2010
Updated	08 Dec 2010
Type	Journal
Year	2008
Where	ACTAC
Authors	Pedro Baltazar

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