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Genre:Прикладные науки. Общие вопросы. Техника (technics_IT)
language:English
publication type:periodical press (Magazines)
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1-10 of 16
periodical press (Magazines)
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.
UDC:
678.5
Subject headings
- Plastics
Annotation
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
Keywords
bioplastics, natural polymers, natural rubber, technologies
Kazakhstan
0/0 Free
periodical press (Magazines)
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.
UDC:
512.57
Subject headings
- Universal algebras
Annotation
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
Keywords
lattice, finite lattice, modular lattice, quasivariety, quasi-identity, finite basis of quasi-identities, Tumanov’s conditions
Kazakhstan
0/0 Free
periodical press (Magazines)
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.
UDC:
517.95
Subject headings
- Partial differential equations
Annotation
The paper investigates a non-local boundary value problem for the Benjamin-Bona-Mahony equation
Keywords
Benjamin-Bona-Mahony equation, algorithm, approximate solution, partial differential equation, nonlinear equation
Kazakhstan
0/0 Free
periodical press (Magazines)
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.
UDC:
517.95:519.6
Subject headings
- Differential equations. Computational mathematics
Annotation
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
Keywords
pseudo-parabolic equation, difference schemes, finite difference method, finite element method, generalized solutions, a priori estimates, stability, convergence, accuracy
Kazakhstan
0/0 Free
periodical press (Magazines)
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.
UDC:
517.28
Subject headings
- Involutory type hyperbolic equation
Annotation
In the present paper, the initial value problem for the hyperbolic type involutory in t second order linear partial differential equation is studied
Keywords
stability, Banach space, partial differential equation, hyperbolic differential equations, differential operator
Kazakhstan
0/0 Free
periodical press (Magazines)
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.
UDC:
517.9
Subject headings
- Differential equations. Integral equations
Annotation
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
Keywords
general solution, nonlinear optimization, boundary vector control, functional, optimal conditions, property of equal relations
Kazakhstan
0/0 Free
periodical press (Magazines)
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.
UDC:
517.9
Subject headings
- Differential equations. Integral equations
Annotation
In a rectangular domain, we consider a boundary value problem periodic in one variable for a system of partial differential equations of hyperbolic type
Keywords
boundary value problem, hyperbolic equations, algorithm, parametrization method, approximate solution
Kazakhstan
0/0 Free
periodical press (Magazines)
ATTAEV A. KH.
Attaev, A. Kh. On Some Non-local Boundary Value and Internal Boundary Value Problems for the String Oscillation Equation [Text] / A. Kh. Attaev // Қарағанды университетінің хабаршысы. Математика сериясы. - 2023. - № 2 (110). - P. 35-44. - Bibliogr.: p. 41-42 ISSN 2518-7929.
UDC:
517.9
Subject headings
- Differential equations. Integral equations
Annotation
The work is devoted to the problem of setting new boundary and internal boundary value problems for hyperbolic equations
Keywords
Wave equation, general solution, Cauchy problem, Goursat problem, Darboux problem, problem with characteristic shift, problem with uncharacteristic displacement
Kazakhstan
0/0 Free
periodical press (Magazines)
TURGUMBAEV M. ZH.
Turgumbaev, M. Zh. On weighted integrability of the sum of series with monotone coefficients with respect to multiplicative systems [Text] / M. Zh. Turgumbaev, Z. R. Suleimenova , D. I. Tungushbaeva // Қарағанды университетінің хабаршысы. Математика сериясы. - 2023. - № 2 (110). - P. 160-168. - Bibliogr.: p. 166-167 ISSN 2518-7929.
UDC:
517.518.4
Subject headings
- Trigonometric series
Annotation
In this paper, the questions about the weighted integrability of the sum of series with respect to multiplicative systems with monotone coefficients have beeb considered
Keywords
multiplicative systems, decomposition, weighted integrability, sum of series, generator sequence, monotone coefficients, Hardy-Littlewood theorem, Lebesgue space
Kazakhstan
0/0 Free
periodical press (Magazines)
YESHKEYEV A. R.
Yeshkeyev, A. R. On Robinson spectrum of the semantic Jonsson quasivariety of unars [Text] / A. R. Yeshkeyev, A. R. Yarullina , S. M. Amanbekov [et al.] // Қарағанды университетінің хабаршысы. Математика сериясы. - 2023. - № 2 (110). - P. 169-178. - Bibliogr.: p. 175-176 ISSN 2518-7929.
UDC:
517.547.56
Subject headings
- Algebraic systems
Annotation
Given article is devoted to the study of semantic Jonsson quasivariety of universal unars of signature containing only unary functional symbol
Keywords
Jonsson theory, unars, universal theory, Robinson theory, quasivariety, semantic Jonsson quasivariety, Jonsson spectrum, Robinson spectrum, equivalence class, cosemanticness
Kazakhstan
0/0 Free
UTEULIN K. R.
ON THE NEED TO DEVELOP TECHNOLOGIES FOR PRODUCING BIOPLASTICS IN KAZAKHSTSN
periodical press (Magazines)
0/0 Free
periodical press (Magazines)
0/0 Free
MANAT A. M.
ON ONE APPROXIMATE SOLUTION OF A NONLOCAL BOUNDARY VALUE PROBLEM FOR THE BENJAMIN-BONA-MAHONY EQUATION
periodical press (Magazines)
0/0 Free
ARIPOV M. M.
ON CONVERGENCE OF DIFFERENCE SCHEMES OF HIGH ACCURACY FOR ONE PSEUDO-PARABOLIC SOBOLEV TYPE EQUATION
periodical press (Magazines)
0/0 Free
ASHYRALYEV А.
ON THE HYPERBOLIC TYPE DIFFERENTIAL EQUATION WITH TIME INVOLUTION
periodical press (Magazines)
0/0 Free
ABDYLDAEVA E. F.
ON THE SOLVABILITY OF A NONLINEAR OPTIMIZATION PROBLEM WITH BOUNDARY VECTOR CONTROL OF OSCILLATORY PROCESSES
periodical press (Magazines)
0/0 Free
TOKMAGAMBETOVA T. D.
ON ONE SOLUTION OF A PERIODIC BOUNDARY VALUE PROBLEM FOR A HYPERBOLIC EQUATIONS
periodical press (Magazines)
0/0 Free
ATTAEV A. KH.
ON SOME NON-LOCAL BOUNDARY VALUE AND INTERNAL BOUNDARY VALUE PROBLEMS FOR THE STRING OSCILLATION EQUATION
periodical press (Magazines)
0/0 Free
TURGUMBAEV M. ZH.
ON WEIGHTED INTEGRABILITY OF THE SUM OF SERIES WITH MONOTONE COEFFICIENTS WITH RESPECT TO MULTIPLICATIVE SYSTEMS
periodical press (Magazines)
0/0 Free
YESHKEYEV A. R.
ON ROBINSON SPECTRUM OF THE SEMANTIC JONSSON QUASIVARIETY OF UNARS
periodical press (Magazines)
0/0 Free