Electronic catalog
Genre:Прикладные науки. Общие вопросы. Техника (technics_IT)
catalogue:Articles
Search result:
3061-3070 of 3707
periodical press (Magazines)
RAMAZANOV M. I.
Ramazanov, M. I. Solution of a two-dimensional parabolic model problem in a degenerate angular domain [Text] / M. I. Ramazanov, N. K. Gulmanov , S. S. Kopbalina // Қарағанды университетінің хабаршысы. Математика сериясы. - 2023. - № 3 (111). - P. 91-108. - Bibliog.: p. 105-106 ISSN 2518-7929.
UDC:
517.95
Subject headings
- Partial differential equations
Annotation
In this paper, the boundary value problem of heat conduction in a domain was considered, boundary of which changes with time, as well as there is no the problem solution domain at the initial time, that is, it degenerates into a point
Keywords
heat equation, boundary value problem, degenerate domain, Volterra singular integral equation, regularization
Kazakhstan
0/0 Free
periodical press (Magazines)
MARKHABATOV N. D.
Markhabatov, N. D. Ranks and approximations for families of cubic theories [Text] / N. D. Markhabatov // Қарағанды университетінің хабаршысы. Математика сериясы. - 2023. - № 3 (111). - P. 81-90. - Bibliogr.: p. 87-88 ISSN 2518-7929.
UDC:
510.6
Subject headings
- Mathematical logic
Annotation
In this paper, the rank characteristics for families of cubic theories, as well as new properties of cubic theories as pseudofiniteness and smooth approximability have been studied
Keywords
approximation of a theory, cub, cubic structure, pseudofinite theory, smoothly approximated structure
Kazakhstan
0/0 Free
periodical press (Magazines)
YESHKEYEV A. R.
Yeshkeyev, A. R. On categoricity questions for universal unars and undirected graphs under semantic Jonsson quasivariety [Text] / A. R. Yeshkeyev, A. R. Yarullina , S. M. Amanbekov // Қарағанды университетінің хабаршысы. Математика сериясы. - 2023. - № 3 (111). - P. 165-180. - Bibliogr.: p. 175-177 ISSN 2518-7929.
UDC:
510.6
Subject headings
- Mathematical logic
Annotation
The article is devoted to the study of semantic Jonsson quasivarieties of universal unars and undirected graphs
Keywords
Jonsson theory, unar, graph, undirected graph, universal theory, Robinson theory, quasivariety, semantic Jonsson quasivariety, Jonsson spectrum, Robinson spectrum, cosemanticness, countable categoricity
Kazakhstan
0/0 Free
periodical press (Magazines)
ULBRIKHT O. I.
Ulbrikht, O. I. A fragment of a theoretical set and its strongly minimal central type [Text] / O. I. Ulbrikht, N. V. Popova // Қарағанды университетінің хабаршысы. Математика сериясы. - 2023. - № 3 (111). - P. 152-164. - Bibliogr.: p. 159-161 ISSN 2518-7929.
UDC:
510.6
Subject headings
- Mathematical logic
Annotation
The paper defines a new class of algebras, the theory of which is a special case of Jonsson theories
Keywords
Jonsson theory, existentially closed model, algebraically closed model, cosemanticness, Robinson spectrum, Robinson hereditary variety, central type, Jonsson fragment, theoretical set, strongly minimal type
Kazakhstan
0/0 Free
periodical press (Magazines)
YESSENBAYEVA G. A.
Yessenbayeva, G. A. On the function approximation by trigonometric polynomials and the properties of families of function classes over harmonic intervals [Text] / G. A. Yessenbayeva, A. N. Yesbayev , N. K. Syzdykova [et al.] // Қарағанды университетінің хабаршысы. Математика сериясы. - 2023. - № 3 (111). - P. 181-190. - Bibliogr.: p. 187-188 ISSN 2518-7929.
UDC:
517.518.8
Subject headings
- Approximation of functions by polynomials and their generalizations
Annotation
The article is devoted to research on approximation theory
Keywords
harmonic interval, spectrum, Dirichlet kernel, trigonometric polynomials, family of function classes, function approximation
Kazakhstan
0/0 Free
periodical press (Magazines)
TLEUKHANOVA N. T.
Tleukhanova, N. T. On the Fourier transform of functions from a Lorentz space L 2,r with a mixed metric [Text] / N. T. Tleukhanova, G. K. Mussabayeva , M. Manarbek // Қарағанды университетінің хабаршысы. Математика сериясы. - 2023. - № 3 (111). - P. 138-151. - Bibliogr.: p. 148-149 ISSN 2518-7929.
UDC:
517.518.45
Subject headings
- Fourier series
Annotation
In the article a two-dimensional analog of the Bochkarev type theorem for the Fourier transform was received
Keywords
Lorentz Space, Hausdorff-Young-Riesz theorem, Bochkarev’s theorem, Cauchy-Bunyakovsky inequality, Helder’s inequality
Kazakhstan
0/0 Free
periodical press (Magazines)
TEMIRKHANOVA A. M.
Temirkhanova, A. M. Criteria for the boundedness of a certain class of matrix operators from lpv into lqu [Text] / A. M. Temirkhanova, A. T. Beszhanova // Қарағанды университетінің хабаршысы. Математика сериясы. - 2023. - № 3 (111). - P. 122-137. - Bibliogr.: p. 135-136 ISSN 2518-7929.
UDC:
517.98
Subject headings
- Functional analysis and operator theory
Annotation
This paper deals with the problem of boundedness of matrix operators from lpv into lqu for 1 < q < p < 1
Keywords
matrix operator, conjugate operator, weight sequence, boundedness, weight inequalities, weight Lebesgue space, Oinarov’s condition, Hardy operator, Hardy inequality, matrix
Kazakhstan
0/0 Free
periodical press (Magazines)
БЕКМАГАМБЕТОВ М.
Бекмагамбетов, М. Проблемы создания современной системы городских пассажирских перевозок в Казахстане [Текст] / М. Бекмагамбетов // Транзитная экономика. - 2006. - № 5-6. - С. 5-12. ISSN 2413-4953.
UDC:
656.02
Subject headings
- Транспортные маршруты, перевозки и специальные характеристики
Annotation
В статье рассматриваются вопросы развития городских пассажирских перевозок в Казахстане
Keywords
пассажирские перевозки, городские пассажирские перевозки, перевозки, транспорт, транспортные технологии, BRT, LRT, пассажирские потоки
Kazakhstan
0/0 Free
periodical press (Magazines)
ABDIMANAPOVA P. B.
Abdimanapova, P. B. Well-posedness criteria for one family of boundary value problems [Text] / P. B. Abdimanapova, S. M. Temesheva // Қарағанды университетінің хабаршысы. Математика сериясы. - 2023. - № 4 (112). - P. 5-20. - Bibliogr.: p. 16-17 ISSN 2518-7929
.
UDC:
517.9
Subject headings
- Differential equations. Integral equations
Annotation
This paper considers a family of linear two-point boundary value problems for systems of ordinary differential equations
Keywords
multipoint boundary value problem, existence of solution, well-posedness, necessary and sufficient condition, шеттік есеп, дифференциалдық теңдеулер, краевые задачи, дифференциальные уравнения
Kazakhstan
0/0 Free
periodical press (Magazines)
AKHAZHANOV T. B.
Akhazhanov, T. B. Coefficients of multiple Fourier-Haar series and variational modulus of continuity [Text] / T. B. Akhazhanov, N. А. Bokayev , D. T. Matin [et al.] // Қарағанды университетінің хабаршысы. Математика сериясы. - 2023. - № 4 (112). - P. 21-29. - Bibliogr.: p. 26-27 ISSN 2518-7929.
UDC:
517.518.45
Subject headings
- Fourier series
Annotation
In this paper, the issue of the absolute convergence for multiple series composed of the Fourier-Haar coefficients of functions of several variables of bounded p-variation was studied
Keywords
Fourier-Haar series, variational modulus of continuity, coefficients of multiple Fourier-Haar series, ряды Фурье-Хаара, Фурье-Хаар қатары
Kazakhstan
0/0 Free
RAMAZANOV M. I.
SOLUTION OF A TWO-DIMENSIONAL PARABOLIC MODEL PROBLEM IN A DEGENERATE ANGULAR DOMAIN
periodical press (Magazines)
0/0 Free
periodical press (Magazines)
0/0 Free
YESHKEYEV A. R.
ON CATEGORICITY QUESTIONS FOR UNIVERSAL UNARS AND UNDIRECTED GRAPHS UNDER SEMANTIC JONSSON QUASIVARIETY
periodical press (Magazines)
0/0 Free
ULBRIKHT O. I.
A FRAGMENT OF A THEORETICAL SET AND ITS STRONGLY MINIMAL CENTRAL TYPE
periodical press (Magazines)
0/0 Free
YESSENBAYEVA G. A.
ON THE FUNCTION APPROXIMATION BY TRIGONOMETRIC POLYNOMIALS AND THE PROPERTIES OF FAMILIES OF FUNCTION CLASSES OVER HARMONIC INTERVALS
periodical press (Magazines)
0/0 Free
TLEUKHANOVA N. T.
ON THE FOURIER TRANSFORM OF FUNCTIONS FROM A LORENTZ SPACE L 2,R WITH A MIXED METRIC
periodical press (Magazines)
0/0 Free
TEMIRKHANOVA A. M.
CRITERIA FOR THE BOUNDEDNESS OF A CERTAIN CLASS OF MATRIX OPERATORS FROM LPV INTO LQU
periodical press (Magazines)
0/0 Free
БЕКМАГАМБЕТОВ М.
ПРОБЛЕМЫ СОЗДАНИЯ СОВРЕМЕННОЙ СИСТЕМЫ ГОРОДСКИХ ПАССАЖИРСКИХ ПЕРЕВОЗОК В КАЗАХСТАНЕ
periodical press (Magazines)
0/0 Free
ABDIMANAPOVA P. B.
WELL-POSEDNESS CRITERIA FOR ONE FAMILY OF BOUNDARY VALUE PROBLEMS
periodical press (Magazines)
0/0 Free
AKHAZHANOV T. B.
COEFFICIENTS OF MULTIPLE FOURIER-HAAR SERIES AND VARIATIONAL MODULUS OF CONTINUITY
periodical press (Magazines)
0/0 Free