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Жанр:Прикладные науки. Общие вопросы. Техника (technics_IT)
Язык издания:Английский
Вид издания:периодические издания(Журналы)
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1-10 из 17
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периодические издания(Журналы)
UTEULIN K. R.
Uteulin, K. R. On the need to develop technologies for producing bioplastics in Kazakhstsn [Text] / K. R. Uteulin, K. Z. Zambakin // Қазақстан Республикасы Ұлттық ғылым академиясының баяндамалары. - 2020. - № 5. - p. 42-48. - Bibliogr.: p. 47-48 ISSN 2224-5227.
УДК:
678.5
Предметная рубрика
- Plastics
Аннотация
This article is published with a purpose to draw attention to the need to initiate in Kazakhstan development on technologies for producing bioplastics from Kazakhstsn's own renewable plant resoures
Ключевые слова
bioplastics, natural polymers, natural rubber, technologies
Казахстаника
0/0 Свободно
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периодические издания(Журналы)
BASHEYEVA A. O.
Basheyeva, A. O. On quasi-identities of finite modular lattices. II [Text] / A. O. Basheyeva, S. M. Lutsak // Қарағанды университетінің хабаршысы. Математика сериясы. - 2023. - № 2 (110). - P. 45-52. - Bibliogr.: p. 50-51 ISSN 2518-7929.
УДК:
512.57
Предметная рубрика
- Universal algebras
Аннотация
The main goal of the paper is to present a finite modular lattice that has no finite basis of quasiidentities and does not satisfy conditions of Tumanov’s theorem
Ключевые слова
lattice, finite lattice, modular lattice, quasivariety, quasi-identity, finite basis of quasi-identities, Tumanov’s conditions
Казахстаника
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периодические издания(Журналы)
MANAT A. M.
Manat, A. M. On one approximate solution of a nonlocal boundary value problem for the Benjamin-Bona-Mahony equation [Text] / A. M. Manat, N. T. Orumbayeva // Қарағанды университетінің хабаршысы. Математика сериясы. - 2023. - № 2 (110). - P. 84-92. - Bibliogr.: p. 90-92 ISSN 2518-7929.
УДК:
517.95
Предметная рубрика
- Partial differential equations
Аннотация
The paper investigates a non-local boundary value problem for the Benjamin-Bona-Mahony equation
Ключевые слова
Benjamin-Bona-Mahony equation, algorithm, approximate solution, partial differential equation, nonlinear equation
Казахстаника
0/0 Свободно
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периодические издания(Журналы)
ARIPOV M. M.
Aripov, M. M. On convergence of difference schemes of high accuracy for one pseudo-parabolic Sobolev type equation [Text] / M. M. Aripov, D. Utebaev , M. M. Kazimbetova // Қарағанды университетінің хабаршысы. Математика сериясы. - 2023. - № 1 (109). - P. 24-37. - Bibliogr.: p. 34-35 ISSN 2518-7929.
УДК:
517.95:519.6
Предметная рубрика
- Differential equations. Computational mathematics
Аннотация
Difference schemes of the finite difference method and the finite element method of high-order accuracy in time and space are proposed and investigated for a pseudo-parabolic Sobolev type equation
Ключевые слова
pseudo-parabolic equation, difference schemes, finite difference method, finite element method, generalized solutions, a priori estimates, stability, convergence, accuracy
Казахстаника
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периодические издания(Журналы)
ASHYRALYEV А.
Ashyralyev, А. On the hyperbolic type differential equation with time involution [Text] / А. Ashyralyev, А. Ashyralyyev , B. Abdalmohammed // Қарағанды университетінің хабаршысы. Математика сериясы. - 2023. - № 1 (109). - P. 38-47. - Bibliogr.: p. 44-45 ISSN 2518-7929.
УДК:
517.28
Предметная рубрика
- Involutory type hyperbolic equation
Аннотация
In the present paper, the initial value problem for the hyperbolic type involutory in t second order linear partial differential equation is studied
Ключевые слова
stability, Banach space, partial differential equation, hyperbolic differential equations, differential operator
Казахстаника
0/0 Свободно
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периодические издания(Журналы)
ABDYLDAEVA E. F.
Abdyldaeva, E. F. On the solvability of a nonlinear optimization problem with boundary vector control of oscillatory processes [Text] / E. F. Abdyldaeva, A. K. Kerimbekov , M. T. Zhaparov // Қарағанды университетінің хабаршысы. Математика сериясы. - 2023. - № 1 (109). - P. 5-13. - Bibliogr.: p. 10-11 ISSN 2518-7929.
УДК:
517.9
Предметная рубрика
- Differential equations. Integral equations
Аннотация
In the paper, the solvability of the nonlinear boundary optimization problem has been investigated for the oscillation processes, described by the integro-differential equation in partial derivatives with Fredholm integral operator
Ключевые слова
general solution, nonlinear optimization, boundary vector control, functional, optimal conditions, property of equal relations
Казахстаника
0/0 Свободно
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периодические издания(Журналы)
TOKMAGAMBETOVA T. D.
Tokmagambetova, T. D. On one solution of a periodic boundary value problem for a hyperbolic equations [Text] / T. D. Tokmagambetova, N. T. Orumbayeva // Қарағанды университетінің хабаршысы. Математика сериясы. - 2023. - № 1 (109). - P. 141-155. - On one solution of a periodic boundary value problem for a hyperbolic equations ISSN 2518-7929.
УДК:
517.9
Предметная рубрика
- Differential equations. Integral equations
Аннотация
In a rectangular domain, we consider a boundary value problem periodic in one variable for a system of partial differential equations of hyperbolic type
Ключевые слова
boundary value problem, hyperbolic equations, algorithm, parametrization method, approximate solution
Казахстаника
0/0 Свободно
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периодические издания(Журналы)
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.
УДК:
510.6
Предметная рубрика
- Mathematical logic
Аннотация
The article is devoted to the study of semantic Jonsson quasivarieties of universal unars and undirected graphs
Ключевые слова
Jonsson theory, unar, graph, undirected graph, universal theory, Robinson theory, quasivariety, semantic Jonsson quasivariety, Jonsson spectrum, Robinson spectrum, cosemanticness, countable categoricity
Казахстаника
0/0 Свободно
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периодические издания(Журналы)
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.
УДК:
517.518.8
Предметная рубрика
- Approximation of functions by polynomials and their generalizations
Аннотация
The article is devoted to research on approximation theory
Ключевые слова
harmonic interval, spectrum, Dirichlet kernel, trigonometric polynomials, family of function classes, function approximation
Казахстаника
0/0 Свободно
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периодические издания(Журналы)
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.
УДК:
517.518.45
Предметная рубрика
- Fourier series
Аннотация
In the article a two-dimensional analog of the Bochkarev type theorem for the Fourier transform was received
Ключевые слова
Lorentz Space, Hausdorff-Young-Riesz theorem, Bochkarev’s theorem, Cauchy-Bunyakovsky inequality, Helder’s inequality
Казахстаника
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UTEULIN K. R.
ON THE NEED TO DEVELOP TECHNOLOGIES FOR PRODUCING BIOPLASTICS IN KAZAKHSTSN
периодические издания(Журналы)
0/0 Свободно
периодические издания(Журналы)
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MANAT A. M.
ON ONE APPROXIMATE SOLUTION OF A NONLOCAL BOUNDARY VALUE PROBLEM FOR THE BENJAMIN-BONA-MAHONY EQUATION
периодические издания(Журналы)
0/0 Свободно
ARIPOV M. M.
ON CONVERGENCE OF DIFFERENCE SCHEMES OF HIGH ACCURACY FOR ONE PSEUDO-PARABOLIC SOBOLEV TYPE EQUATION
периодические издания(Журналы)
0/0 Свободно
ASHYRALYEV А.
ON THE HYPERBOLIC TYPE DIFFERENTIAL EQUATION WITH TIME INVOLUTION
периодические издания(Журналы)
0/0 Свободно
ABDYLDAEVA E. F.
ON THE SOLVABILITY OF A NONLINEAR OPTIMIZATION PROBLEM WITH BOUNDARY VECTOR CONTROL OF OSCILLATORY PROCESSES
периодические издания(Журналы)
0/0 Свободно
TOKMAGAMBETOVA T. D.
ON ONE SOLUTION OF A PERIODIC BOUNDARY VALUE PROBLEM FOR A HYPERBOLIC EQUATIONS
периодические издания(Журналы)
0/0 Свободно
YESHKEYEV A. R.
ON CATEGORICITY QUESTIONS FOR UNIVERSAL UNARS AND UNDIRECTED GRAPHS UNDER SEMANTIC JONSSON QUASIVARIETY
периодические издания(Журналы)
0/0 Свободно
YESSENBAYEVA G. A.
ON THE FUNCTION APPROXIMATION BY TRIGONOMETRIC POLYNOMIALS AND THE PROPERTIES OF FAMILIES OF FUNCTION CLASSES OVER HARMONIC INTERVALS
периодические издания(Журналы)
0/0 Свободно
TLEUKHANOVA N. T.
ON THE FOURIER TRANSFORM OF FUNCTIONS FROM A LORENTZ SPACE L 2,R WITH A MIXED METRIC
периодические издания(Журналы)
0/0 Свободно