Results 11 to 20 of about 80,814 (154)

Normal Jonsson theories and their Kaiser classes

Bulletin of the Karaganda University-Mathematics
We present results concerning new notion connected with the study of Jonsson theories. The new notion is a Kaiser class of models for arbitrary Jonsson theories. All results are obtained within the framework of the normality of the considered Jonsson theory.
A.R. Yeshkeyev, M.T. Kassymetova, N.M. Mussina   +2 more
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Pregeometry on the subsets of Jonsson theory’s semantic model

BULLETIN OF THE KARAGANDA UNIVERSITY-MATHEMATICS, 2018
One of the interesting achievements among investigations from modern model theory is the implement of local properties of the geometry of strongly minimal sets. In E. Hrushovski have proved remarkable results under this ideas and this one had impacted an essential infuence for development of methods and ideas of research for global properties of ...
M.T. Kassymetova
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Connection between the amalgam and joint embedding properties [PDF]

Қарағанды университетінің хабаршысы. Математика сериясы, 2022
The paper aims to study the model-theoretic properties of differentially closed fields of zero and positive characteristics in framework of study of Jonsson theories.
A.R. Yeshkeyev, I.O. Tungushbayeva, M.T. Kassymetova   +2 more
doaj   +3 more sources

Existentially positive Mustafin theories of S-acts over a group [PDF]

Қарағанды университетінің хабаршысы. Математика сериясы, 2022
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, O.I. Ulbrikht, A.R. Yarullina   +2 more
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Existentially prime Jonsson quasivarieties and their Jonsson spectra [PDF]

Қарағанды университетінің хабаршысы. Математика сериясы, 2022
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, I. O. Tungushbayeva, S. M. Amanbekov   +2 more
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On Jonsson varieties and quasivarieties [PDF]

Қарағанды университетінің хабаршысы. Математика сериясы, 2021
In this paper, new objects of research are identified, both from the standpoint of model theory and from the standpoint of universal algebra.
A.R. Yeshkeyev
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Existential prime convex Jonsson theories and their models

Қарағанды университетінің хабаршысы. Математика сериясы, 2016
This article is devoted to the study of the model - theoretic properties of special subclasses of Jonsson theories and their classes of models. Namely, introduce a new class of Jonsson theories is existentially prime convex Jonsson theories. The notion of convexity of theory was previously known, it was introduced by A.Robinson.
A.R. Yeshkeyev
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On categoricity questions for universal unars and undirected graphs under semantic Jonsson quasivariety [PDF]

Қарағанды университетінің хабаршысы. Математика сериясы, 2023
The article is devoted to the study of semantic Jonsson quasivarieties of universal unars and undirected graphs. The first section of the article consists of basic necessary concepts from Jonsson model theory.
A.R. Yeshkeyev, A.R. Yarullina, S.M. Amanbekov   +2 more
doaj   +2 more sources

Geometry of strongly minimal hybrids of fragments of theoretical sets [PDF]

Қарағанды университетінің хабаршысы. Математика сериясы, 2023
In this article, strongly minimal geometries of fragment hybrids are considered. In this article, a new concept was introduced as a family of Jonsson definable subsets of the semantic model of the Jonsson theory T, denoted by JDef(CT).
M.T. Kassymetova, N.M. Mussina
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Properties of a stability for positive Jonsson theories

Қарағанды университетінің хабаршысы. Математика сериясы, 2015
Actually, we study the connections of the Δ-PM-theories with their centers in the enrich signature. The properties of various companions of some Δ-PM-theories and their connection with this theory are considered on the language of the central types of positive Jonsson theory.
A.R. Yeshkeyev
openaire   +2 more sources