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Title: The weak hereditary class of a variety (English)
Author: Bartol, Wiktor
Author: Rosselló, Francesc
Language: English
Journal: Czechoslovak Mathematical Journal
ISSN: 0011-4642 (print)
ISSN: 1572-9141 (online)
Volume: 56
Issue: 2
Year: 2006
Pages: 697-710
Summary lang: English
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Category: math
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Summary: We study the weak hereditary class $S_{w}(\mathcal K)$ of all weak subalgebras of algebras in a total variety $\mathcal K$. We establish an algebraic characterization, in the sense of Birkhoff’s HSP theorem, and a syntactical characterization of these classes. We also consider the problem of when such a weak hereditary class is weak equational. (English)
Keyword: partial algebras
Keyword: varieties
Keyword: weak subalgebras
Keyword: weak equations
MSC: 08A55
MSC: 08B99
idZBL: Zbl 1164.08303
idMR: MR2291768
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Date available: 2009-09-24T11:37:13Z
Last updated: 2020-07-03
Stable URL: http://hdl.handle.net/10338.dmlcz/128098
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