ON PSEUDOVARIETIES, VARIETIES OF LANGUAGES, FILTERS OF CONGRUENCES, PSEUDOIDENTITIES AND RELATED TOPICS

• Tipo: Artigo em Revista Científica Internacional
• Data: 1990

Autores

ALMEIDA, J (Autor) FCUP

Revista

Título: Algebra Universalis

Vol. 27

Páginas: 333-350

ISSN: 0002-5240

Editora: Springer Nature

Indexação

ISI Web of Knowledge - 37 Citações

Scopus - 41 Citações

Classificação Científica

FOS: Ciências exactas e naturais > Matemática

Outras Informações

ID Authenticus: P-001-S19

DOI: 10.1007/BF01190713

Abstract (EN): In recent years there has been considerable interest in pseudovarieties, mainly in the theory of finite semigroups and monoids. However, several results on pseudovarieties apply to much more general finite algebraic structures. This note provides a systematic approach to various characterizations of pseudovarieties, some old, some new, most of them formulated in terms of isomorphisms with the lattice of pseudovarieties contained in a given pseudovariety. It clarifies the relationships between alternative descriptions of pseudovarieties and it characterizes those sets of pseudoidentities which are (deductively) closed. © 1990 Birkhÿuser Verlag.

Idioma: Inglês

Tipo (Avaliação Docente): Científica