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ACTAC
2008

$M$-Solid Varieties of Languages

13 years 11 months ago
$M$-Solid Varieties of Languages
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
Added 08 Dec 2010
Updated 08 Dec 2010
Type Journal
Year 2008
Where ACTAC
Authors Pedro Baltazar
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