Электронный каталог
Жанр:Прикладные науки. Общие вопросы. Техника (technics_IT)
Каталог:Статьи
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3041-3050 из 4017
периодические издания(Журналы)
SALIM S. H.
Salim, S. H. Solving Volterra-Fredholm integral equations by natural cubic spline function [Text] / S. H. Salim, K. H.F. Jwamer , R. K. Saeed // Қарағанды университетінің хабаршысы. Математика сериясы. - 2023. - № 1 (109). - P. 124-130. - Bibliogr.: p. 128-129 ISSN 2518-7929.
УДК:
517.9
Предметная рубрика
- Differential equations. Integral equations
Аннотация
Using the natural cubic spline function, this paper finds the numerical solution of Volterra-Fredholm integral equations of the second kind
Ключевые слова
Volterra integral equation, Fredholm integral equation, spline function
Казахстаника
0/0 Свободно
периодические издания(Журналы)
SINSOYSAL B.
Sinsoysal, B. Numerical method to solution of generalized model Buckley-Leverett in a class of discontinuous functions [Text] / B. Sinsoysal, M. Rasulov , R. Iskenderova // Қарағанды университетінің хабаршысы. Математика сериясы. - 2023. - № 1 (109). - P. 131-140. - Bibliogr.: p. 137-138 ISSN 2518-7929.
УДК:
517.9
Предметная рубрика
- Differential equations. Integral equations
Аннотация
A new numerical method is proposed for solving the generalized Buckley-Leverett problem, which describes the movement of two-phase mixtures of Bazhenov bed sediments in a class of discontinuous functions
Ключевые слова
generalized Buckley-Leverett problem, auxiliary problem, finite differences method, nonlinear differential equations
Казахстаника
0/0 Свободно
периодические издания(Журналы)
YUCEL M.
Yucel, M. Generalized differential transformation method for solving two-interval Weber equation subject to transmission conditions [Text] / M. Yucel, F. S. Muhtarov , O. Sh. Mukhtarov // Қарағанды университетінің хабаршысы. Математика сериясы. - 2023. - № 1 (109). - P. 168-176. - Bibliogr.: p. 168-176 ISSN 2518-7929.
УДК:
519.62
Предметная рубрика
- Numerical methods for solving differential equations
Аннотация
The main goal of this study is to adapt the classical differential transformation method to solve new types of boundary value problems
Ключевые слова
two-interval problems, the differential transformation method, Weber equation, transmission conditions
Казахстаника
0/0 Свободно
периодические издания(Журналы)
MARDANOV M. J.
Mardanov, M. J. An optimal control problem for the systems with integral boundary conditions [Text] / M. J. Mardanov, Y. A. Sharifov // Қарағанды университетінің хабаршысы. Математика сериясы. - 2023. - № 1 (109). - P. 119-121. - Bibliogr.: p. 119-121 ISSN 2518-7929.
УДК:
517.97
Предметная рубрика
- Calculus of variations and the mathematical theory of optimal control
Аннотация
In this paper, an optimal control problem with a "pure", integral boundary condition is considered. The Green’s function is constructed
Ключевые слова
integral boundary conditions, integral conditions, nonlinear boundary, singular control, optimal control problem
Казахстаника
0/0 Свободно
периодические издания(Журналы)
KURINA G. A.
Kurina, G. A. Minimizing sequences for a linear-quadratic control problem with three-tempo variables under weak nonlinear perturbations [Text] / G. A. Kurina, M. A. Kalashnikova // Қарағанды университетінің хабаршысы. Математика сериясы. - 2023. - № 1 (109). - P. 94-109. - Bibliogr.: p. 106-107 ISSN 2518-7929.
УДК:
517.9
Предметная рубрика
- Differential equations. Integral equations
Аннотация
The paper deals with the construction of minimizing sequences for the problem of minimizing a weakly nonlinearly perturbed quadratic performance index on trajectories of a weakly nonlinear system with threetempo state variables
Ключевые слова
three-tempo variables, nonlinear control problems, asymptotic estimates, minimizing sequences, differential equations
Казахстаника
0/0 Свободно
периодические издания(Журналы)
YAKAR А.
Yakar, А. Extensions of some differential inequalities for fractional integro-differential equations via upper and lower solutions [Text] / А. Yakar, H. Kutlay // Қарағанды университетінің хабаршысы. Математика сериясы. - 2023. - № 1 (109). - P. 156-167. - Bibliogr.: p. 165-166 ISSN 2518-7929.
УДК:
517.9
Предметная рубрика
- Differential equations. Integral equations
Аннотация
This paper deals with some differential inequalities for generalized fractional integro-differential equations by using the technique of upper and lower solutions
Ключевые слова
fractional differential equations, differential inequalities, upper and lower solutions, boundary value problem
Казахстаника
0/0 Свободно
периодические издания(Журналы)
ADIGUZEL H.
Adiguzel, H. Asymptotic behavior of solutions of sum-difference equations [Text] / H. Adiguzel, E. Can // Қарағанды университетінің хабаршысы. Математика сериясы. - 2023. - № 1 (109). - P. 14-23. - Bibliogr.: p. 20-21 ISSN 2518-7929.
УДК:
517.929
Предметная рубрика
- Difference equations
Аннотация
In this paper, a study of the asymptotic behavior of solutions of sum-difference equations was presented
Ключевые слова
asymptotic behavior, oscillation, nonoscillation, difference equations, Caputo fractional difference operator
Казахстаника
0/0 Свободно
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
периодические издания(Журналы)
ASHYRALYEV А.
Ashyralyev, А. Numerical solution of the boundary value problems for the parabolic equation with involution [Text] / А. Ashyralyev, C. Ashyralyyev , A. M. S. Ahmed // Қарағанды университетінің хабаршысы. Математика сериясы. - 2023. - № 1 (109). - P. 56-57. - Bibliogr.: p. 56-57 ISSN 2518-7929.
УДК:
517.9
Предметная рубрика
- Differential equations. Integral equations
Аннотация
This work studied two boundary value problems for involutary parabolic equation with the first and second kind conditions
Ключевые слова
involution, parabolic, finite difference scheme, stability estimate, boundary value problem
Казахстаника
0/0 Свободно
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
SALIM S. H.
SOLVING VOLTERRA-FREDHOLM INTEGRAL EQUATIONS BY NATURAL CUBIC SPLINE FUNCTION
периодические издания(Журналы)
0/0 Свободно
SINSOYSAL B.
NUMERICAL METHOD TO SOLUTION OF GENERALIZED MODEL BUCKLEY-LEVERETT IN A CLASS OF DISCONTINUOUS FUNCTIONS
периодические издания(Журналы)
0/0 Свободно
YUCEL M.
GENERALIZED DIFFERENTIAL TRANSFORMATION METHOD FOR SOLVING TWO-INTERVAL WEBER EQUATION SUBJECT TO TRANSMISSION CONDITIONS
периодические издания(Журналы)
0/0 Свободно
MARDANOV M. J.
AN OPTIMAL CONTROL PROBLEM FOR THE SYSTEMS WITH INTEGRAL BOUNDARY CONDITIONS
периодические издания(Журналы)
0/0 Свободно
KURINA G. A.
MINIMIZING SEQUENCES FOR A LINEAR-QUADRATIC CONTROL PROBLEM WITH THREE-TEMPO VARIABLES UNDER WEAK NONLINEAR PERTURBATIONS
периодические издания(Журналы)
0/0 Свободно
YAKAR А.
EXTENSIONS OF SOME DIFFERENTIAL INEQUALITIES FOR FRACTIONAL INTEGRO-DIFFERENTIAL EQUATIONS VIA UPPER AND LOWER SOLUTIONS
периодические издания(Журналы)
0/0 Свободно
ADIGUZEL H.
ASYMPTOTIC BEHAVIOR OF SOLUTIONS OF SUM-DIFFERENCE EQUATIONS
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
ASHYRALYEV А.
NUMERICAL SOLUTION OF THE BOUNDARY VALUE PROBLEMS FOR THE PARABOLIC EQUATION WITH INVOLUTION
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