Finite-to-finite universal quasivarieties are \(Q\)-universal.

DOI10.1007/PL00000343zbMath1059.08002MaRDI QIDQ1771875

Xianqiang Yang

Publication date: 19 April 2005

Published in: Algebra Universalis (Search for Journal in Brave)

zbMATH Keywords

varietyquasivarietydirected graphsuniversal categorylattice of quasivarieties\(Q\)-universal quasivariety

Mathematics Subject Classification ID

Partial orders, general (06A06) Directed graphs (digraphs), tournaments (05C20) Quasivarieties (08C15) Unary algebras (08A60)

Related Items (16)

Structure of quasivariety lattices. IV: Nonstandard quasivarieties ⋮ Universal varieties of quasi-Stone algebras ⋮ A relatively finite-to-finite universal but not Q-universal quasivariety ⋮ Lattices of subclasses. III ⋮ Unnamed Item ⋮ ENDOMORPHISMS OF DISTRIBUTIVE LATTICES WITH A QUANTIFIER ⋮ Complexity of quasivariety lattices. ⋮ Categorical Dualities for Some Two Categories of Lattices: An Extended Abstract ⋮ On the complexity of quasivariety lattices ⋮ Structure of quasivariety lattices. I: Independent axiomatizability ⋮ Structure of quasivariety lattices. II: Undecidable problems ⋮ On relative universality and \(Q\)-universality ⋮ Open questions related to the problem of Birkhoff and Maltsev ⋮ Equivalents for a quasivariety to be generated by a single structure ⋮ QUASIVARIETIES OF IDEMPOTENT SEMIGROUPS ⋮ Almost \textit{ff}-universality implies \(Q\)-universality

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