Free profinite \(\mathcal R\)-trivial, locally idempotent and locally commutative semigroups

DOI10.1007/BF03325439zbMath0939.20057MaRDI QIDQ1293384

José Carlos Costa

Publication date: 16 November 1999

Published in: Semigroup Forum (Search for Journal in Brave)

zbMATH Keywords

idempotentsgeneratorsGreen relationsfree profinite semigroupspseudovarieties of finite semigroupsvarieties of rational languages

Mathematics Subject Classification ID

Varieties and pseudovarieties of semigroups (20M07) Free semigroups, generators and relations, word problems (20M05) Semigroups in automata theory, linguistics, etc. (20M35)

Related Items (1)

Free profinite locally idempotent and locally commutative semigroups

Cites Work

• The algebra of implicit operations
• The Birkhoff theorem for finite algebras
• Over testable languages
• Implicit operations on finite \({\mathcal J}\)-trivial semigroups and a conjecture of I. Simon
• Locally testable languages
• Characterizations of locally testable events
• Defining Relations and the Algebraic Structure of the Group SL₂ over Integral Hamilton Quaternions
• Algebraic decision procedures for local testability
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