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Article
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Proceedings of the American Mathematical Society
Article . 1994 . Peer-reviewed
Data sources: Crossref
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Q-Universal Quasivarieties of Algebras

\(Q\)-universal quasivarieties of algebras
Authors: Adams, M. E.; Dziobiak, W.;

Q-Universal Quasivarieties of Algebras

Abstract

For any quasivariety \({\mathbf K}\) of algebras (of finite type), let \(L({\mathbf K})\) be the lattice of all quasivarieties in \({\mathbf K}\). Call \({\mathbf K}\) \(Q\)-universal iff for any quasivariety \({\mathbf M}\) (of algebras of finite type), \(L({\mathbf M})\) is a homomorphic image of a sublattice of \(L({\mathbf K})\). It follows, among other things, that \(L({\mathbf K})\) satisfies no nontrivial lattice identity whenever \({\mathbf K}\) is \(Q\)-universal. \textit{W. Dziobiak} [Algebra Univers. 21, 62-67 (1985; Zbl 0589.08007)] found a set of 4 conditions on a quasivariety \({\mathbf K}\) (of finite type) jointly ensuring that \(L({\mathbf K})\) fails to satisfy any nontrivial lattice identity. The main theorem of this paper states that Dziobiak's conditions are in fact sufficient to show that \(L({\mathbf K})\) is even \(Q\)-universal. As a corollary, the authors obtain that a quasivariety \({\mathbf K}\) (i) whose finite algebras carry no skew congruences and (ii) which contains an infinite family of finite hereditarily simple algebras none of which is embeddable into any other one, must be \(Q\)-universal.

Keywords

\(Q\)-universality, quasivariety, Lattices, Quasivarieties, lattice identity, Other algebras related to logic

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
2
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