Electronic catalog
Genre:Прикладные науки. Общие вопросы. Техника (technics_IT)
catalogue:Articles
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3051-3060 of 4993
periodical press (Magazines)
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.
UDC:
519.62
Subject headings
- Numerical methods for solving differential equations
Annotation
The main goal of this study is to adapt the classical differential transformation method to solve new types of boundary value problems
Keywords
two-interval problems, the differential transformation method, Weber equation, transmission conditions
Kazakhstan
0/0 Free
periodical press (Magazines)
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.
UDC:
517.97
Subject headings
- Calculus of variations and the mathematical theory of optimal control
Annotation
In this paper, an optimal control problem with a "pure", integral boundary condition is considered. The Green’s function is constructed
Keywords
nonlinear boundary, singular control, optimal control problem, integral boundary conditions, integral conditions
Kazakhstan
0/0 Free
periodical press (Magazines)
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.
UDC:
517.9
Subject headings
- Differential equations. Integral equations
Annotation
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
Keywords
three-tempo variables, nonlinear control problems, asymptotic estimates, minimizing sequences, differential equations
Kazakhstan
0/0 Free
periodical press (Magazines)
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.
UDC:
517.9
Subject headings
- Differential equations. Integral equations
Annotation
This paper deals with some differential inequalities for generalized fractional integro-differential equations by using the technique of upper and lower solutions
Keywords
fractional differential equations, differential inequalities, upper and lower solutions, boundary value problem
Kazakhstan
0/0 Free
periodical press (Magazines)
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.
UDC:
517.929
Subject headings
- Difference equations
Annotation
In this paper, a study of the asymptotic behavior of solutions of sum-difference equations was presented
Keywords
asymptotic behavior, oscillation, nonoscillation, difference equations, Caputo fractional difference 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)
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.
UDC:
517.9
Subject headings
- Differential equations. Integral equations
Annotation
This work studied two boundary value problems for involutary parabolic equation with the first and second kind conditions
Keywords
involution, parabolic, finite difference scheme, stability estimate, boundary value problem
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)
ЖЕКСЕМБИЕВА Н. С.
Жексембиева , Н. С. Әуе ЭБЖ сымдарының инновациялық конструкцияларын жіктеу туралы [Мәтін] / Н. С. Жексембиева , Е. Н. Хасанов // Ғылым және білім. - 2023. - № 2-3 (71). - 144-151 б. - Библиогр.: 150-151 б. ISSN 2305-9397.
UDC:
621.3
Subject headings
- Электротехника
Annotation
Мақалада жоғары вольтты әуе электр желілерінің сымдарының жаңа түрлері туралы кең ақпарат жүйеленеді, құрылымдық сипаттамаларға сәйкес жіктеу ұсынылады
Keywords
әле желілері , жоғары температуралы сымдар, токөткізгіштік бөлік, қорытпа, термиялық төзімділік, электрмен жабдықтау , шағындық сымдар
Kazakhstan
0/0 Free
periodical press (Magazines)
СМАГУЛОВА Н.
Смагулова, Н. Основные направления и перспективы развития железнодорожных транзитных перевозок в Республике Казахстан [Текст] / Н. Смагулова // Транзитная экономика. - 2005. - № 2. - С. 68-72. - Библиогр.: с. 72 ISSN 2413-4953.
UDC:
625
Subject headings
- Железные дороги. Железнодорожное строительство
Annotation
В статье рассматриваются основные направления и перспективы развития железнодорожных транзитных перевозок в Казахстане
Keywords
железнодорожные транспортные перевозки, трансконтинентальные маршруты, международные маршруты, Северный коридор ТАЖД, Центральный коридор ТАЖД, трансазиатская железная дорога, Западный коридор ТАЖД, Среднеазиатский коридор
Kazakhstan
0/0 Free
YUCEL M.
GENERALIZED DIFFERENTIAL TRANSFORMATION METHOD FOR SOLVING TWO-INTERVAL WEBER EQUATION SUBJECT TO TRANSMISSION CONDITIONS
periodical press (Magazines)
0/0 Free
MARDANOV M. J.
AN OPTIMAL CONTROL PROBLEM FOR THE SYSTEMS WITH INTEGRAL BOUNDARY CONDITIONS
periodical press (Magazines)
0/0 Free
KURINA G. A.
MINIMIZING SEQUENCES FOR A LINEAR-QUADRATIC CONTROL PROBLEM WITH THREE-TEMPO VARIABLES UNDER WEAK NONLINEAR PERTURBATIONS
periodical press (Magazines)
0/0 Free
YAKAR А.
EXTENSIONS OF SOME DIFFERENTIAL INEQUALITIES FOR FRACTIONAL INTEGRO-DIFFERENTIAL EQUATIONS VIA UPPER AND LOWER SOLUTIONS
periodical press (Magazines)
0/0 Free
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
ASHYRALYEV А.
NUMERICAL SOLUTION OF THE BOUNDARY VALUE PROBLEMS FOR THE PARABOLIC EQUATION WITH INVOLUTION
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
ЖЕКСЕМБИЕВА Н. С.
ӘУЕ ЭБЖ СЫМДАРЫНЫҢ ИННОВАЦИЯЛЫҚ КОНСТРУКЦИЯЛАРЫН ЖІКТЕУ ТУРАЛЫ
periodical press (Magazines)
0/0 Free
СМАГУЛОВА Н.
ОСНОВНЫЕ НАПРАВЛЕНИЯ И ПЕРСПЕКТИВЫ РАЗВИТИЯ ЖЕЛЕЗНОДОРОЖНЫХ ТРАНЗИТНЫХ ПЕРЕВОЗОК В РЕСПУБЛИКЕ КАЗАХСТАН
periodical press (Magazines)
0/0 Free