Results 21 to 30 of about 59 (34)
Unique solvability of boundary value problem for functional differential equations with involution [PDF]
, 2021 In this paper we consider a boundary value problem for systems of Fredholm type integral-differential equations with involutive transformation, containing derivative of the required function on the right-hand side under the integral sign.
K.I. Usmanov, K.Zh. Nazarova
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Small models of convex fragments of definable subsets [PDF]
, 2020 This article discusses the problems of that part of Model Theory that studies the properties of countable models of inductive theories with additional properties, or, in other words, Jonsson theories. The characteristic features are analyzed on the basis
A.R. Yeshkeyev, N.V. Popova
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Closure of special atomic subsets of semantic model [PDF]
, 2020 The present paper concerns some properties of the so-called small models, generally speaking, not necessarily complete theories and their relationship with each other. In the well-known paper [1], R.
A.K. Issaeva +2 more
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Chains of existentially closed models of positive (n1, n2)-Jonsson theories [PDF]
, 2019 In this article are considered model - theoretical properties of chains of positive ( n1,n2) - Jonsson theories. Herewith considered theories is perfect in the sense of the existence of appropriate model companion.
A.R. Yeshkeyev, M.T. Omarova
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The admissibility and similarity of Jonsson theories [PDF]
, 2018 This work is related to the concepts of admissibility, interpretability, syntactic similarity and semantic similarity of Jonsson’s theories.This new concept generalize the notion of syntactic and semantic similarities for Jonsson theories.
A.R. Yeshkeyev, G.A. Urken
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Pregeometry on the subsets of Jonsson theory’s semantic model [PDF]
, 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
M.T. Kassymetova
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Syntactic similarity of definable closures of Jonsson sets [PDF]
, 2018 In the framework of the classification of the Jonsson theories concept of interpretability and admissibility in the language of the semantic triple of the Jonsson theory was considered.
G.A. Urken
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Model-theoretic properties of J-superstable Jonsson theories in classes defined by cosemanticness
Қарағанды университетінің хабаршысы. Математика сериясыThis article deals with the problems of model-theoretic characterization of J-superstable Jonsson theories. The characteristic features of such theories are analyzed in terms of J-stability, J-P-superstability, and J-nonmultidimensionality.
A.R. Yeshkeyev +2 more
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∇-cl-atomic and prime sets [PDF]
, 2019 In this article the model - theoretic properties of special formula subsets of the semantic model of some fixed Jonsson theory are considered. The main purpose of this paper is the study of concepts of models’ primeness and atomness in the study of ...
A.K. Issayeva, A.R. Yeshkeyev
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The Properties of Similarity for Jonsson’s Theories and Their Models [PDF]
, 2015 Actually, we study the connections of the ∆-PJ-theories with their centers. The properties of various companions of some ∆-PJ-theories and their connection with this theory are considered.
A.R. Yeshkeyev
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