Results 21 to 30 of about 80,814 (154)
Method of the rheostat for studying properties of fragments of theoretical sets
Қарағанды университетінің хабаршысы. Математика сериясы, 2020 In this article discusses the model-theoretical properties of fragments of theoretical sets and the rheostat method. These two concepts: theoretical set and rheostat are new. The study of this topic in the framework of the study of Jonsson theories, the
A.R. Yeshkeyev
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Small models of convex fragments of definable subsets
Қарағанды университетінің хабаршысы. Математика сериясы, 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.
A.R. Yeshkeyev, N.V. Popova
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An essential base of the central types of the convex theory
Қарағанды университетінің хабаршысы. Математика сериясы, 2021 In this paper, we consider the model-theoretical properties of the essential base of the central types of convex theory. Also shows the connection between the center and Jonsson theory in permissible enrichment signatures.
A.R. Yeshkeyev, M.T. Omarova
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An algebra of the central types of the mutually model-consistent fragments
Қарағанды университетінің хабаршысы. Математика сериясы, 2021 In this paper, the model-theoretical properties of the algebra of central types of mutually model-consistent fragments are considered. Also, the connections between the center and the Jonsson theory in the permissible signature enrichment are shown, and
A.R. Yeshkeyev, N.M. Mussina
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On Robinson spectrum of the semantic Jonsson quasivariety of unars [PDF]
Қарағанды университетінің хабаршысы. Математика сериясы, 2023 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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Rees products and lexicographic shellability [PDF]
, 2012 We use the theory of lexicographic shellability to provide various examples in which the rank of the homology of a Rees product of two partially ordered sets enumerates some set of combinatorial objects, perhaps according to some natural statistic on the
Linusson, Svante +2 more
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Algebraic webs invariant under endomorphisms [PDF]
, 2009 We classify noninvertible, holomorphic selfmaps of the projective plane that preserve an algebraic web. In doing so, we obtain interesting examples of critically finite maps.Comment: 9 pages, 1 figure.
Dabija, Marius, Jonsson, Mattias
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Syntactic similarity of definable closures of Jonsson sets
Қарағанды университетінің хабаршысы. Математика сериясы, 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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Path Integration in Two-Dimensional Toplogical Quantum Field Theory [PDF]
, 1995 A positive, diffeomorphism-invariant generalized measure on the space of metrics of a two-dimensional smooth manifold is constructed. We use the term generalized measure analogously with the generalized measures of Ashtekar and Lewandowski and of Baez. A
Sawin, Stephen
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A variational approach to the Yau-Tian-Donaldson conjecture
, 2020 We give a variational proof of a version of the Yau-Tian-Donaldson conjecture for twisted K\"ahler-Einstein currents, and use this to express the greatest (twisted) Ricci lower bound in terms of a purely algebro-geometric stability threshold.
Berman, Robert +2 more
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