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Genre:Прикладные науки. Общие вопросы. Техника (technics_IT)
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41-50 of 56
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)
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)
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)
APAKOV YU. P.
Apakov, Yu. P. On a boundary problem for the fourth order equation with the third derivative with respect to time [Text] / Yu. P. Apakov, D. M. Meliquzieva // Қарағанды университетінің хабаршысы. Математика сериясы. - 2023. - № 4(112). - P. 30-40. - Bibliogr.: p. 36-37 ISSN 2518-7929.
UDC:
517.954
Subject headings
- Boundary value problems
Annotation
In this paper, a boundary value problem in a rectangular domain for a fourth-order homogeneous partial differential equation containing the third derivative with respect to time was considered
Keywords
Initial boundary problem, Fourier method, uniqueness, existence, eigenvalue, eigenfunction, functional series, Фурье әдісі, бастапқы-шеттік есеп, метод Фурье, начально-краевая задача
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
periodical press (Magazines)
DEKHKONOV F. N.
Dekhkonov, F. N. On the time-optimal control problem for a heat equation [Text] / F. N. Dekhkonov // Қарағанды университетінің хабаршысы. Математика сериясы. - 2023. - № 3 (111). - P. 28-38. - Bibliogr.: p. 36-38 ISSN 2518-7929.
UDC:
517.977
Subject headings
- Mathematical theory of management. Optimal management
Annotation
In this paper, the boundary control problem for a heat equation on the interval is considered
Keywords
heat equation, minimal time, admissible control, initial-boundary value problem, boundary control problem
Kazakhstan
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
YESHKEYEV A. R.
ON CATEGORICITY QUESTIONS FOR UNIVERSAL UNARS AND UNDIRECTED GRAPHS UNDER SEMANTIC JONSSON QUASIVARIETY
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
APAKOV YU. P.
ON A BOUNDARY PROBLEM FOR THE FOURTH ORDER EQUATION WITH THE THIRD DERIVATIVE WITH RESPECT TO TIME
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
periodical press (Magazines)
0/0 Free