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The Number of Fragments of the Perfect Class of the Jonsson Spectrum
Lobachevskii Journal of Mathematics, 2022zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Yeshkeyev, A. R. +2 more
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Similarities of Hybrids from Jonsson Spectrum and $$\boldsymbol{S}$$-Acts
Lobachevskii Journal of Mathematics, 2023A. R. Yeshkeyev +2 more
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On Robinson spectrum of the semantic Jonsson quasivariety of unars [PDF]
Given article is devoted to the study of semantic Jonsson quasivariety of universal unars of signature containing only unary functional symbol. The first section of the article consists of basic necessary concepts.
A.R. Yeshkeyev +3 more
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Model-theoretical questions of the Jonsson spectrum
In this paper, new concepts are defined in the framework of the study of Jonsson spectrum. We consider a spectrum with respect to the concept of cosemanticness, which is a generalization of elementary equivalence in the class of inductive, generally ...
A.R. Yeshkeyev
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Model-theoretic properties of semantic pairs and e.f.c.p. in Jonsson spectrum
The article is committed to the study of model-theoretic properties of stable hereditary Jonsson theories, wherein we consider Jonsson theories that retain jonssonnes for any permissible enrichment.
G.E. Zhumabekova
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Double factorization of the Jonsson spectrum
First of all, we have to note that in this article, we introduced the new concepts of relations between Jonsson theories in the class of cosemanticness for some considered Jonsson spectrum.
A.R. Yeshkeyev +2 more
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Existentially prime Jonsson quasivarieties and their Jonsson spectra [PDF]
This article is devoted to the study of Jonsson quasivarieties in a signature enriched with new predicate and constant symbols. New concepts of semantic Jonsson quasivariety and fragment-conservativeness of the center of the Jonsson theory are ...
A. R. Yeshkeyev +2 more
doaj +2 more sources
Existentially positive Mustafin theories of S-acts over a group [PDF]
The paper is connected with the study of Jonsson spectrum notion of the fixed class of models of Sacts signature, assuming a group as a monoid of S-acts.
A.R. Yeshkeyev +2 more
doaj +3 more sources

