Electronic catalog
Genre:Прикладные науки. Общие вопросы. Техника (technics_IT)
catalogue:Articles
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3041-3050 of 4892
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)
ТОКМУРЗИЕВ М. Т.
Токмурзиев, М. Т. Государственное управление нефтяным комплексом в Республике Казахстан [Текст] / М. Т. Токмурзиев // Транзитная экономика. - 2013. - № 1. - С. 78-82
. ISSN 2413-4953.
UDC:
622.323(574)
Subject headings
- Нефтегазовая промышленность Казахстана
Annotation
В статье освещаются вопросы и проблемы государственного управления нефтяной промышленностью в Казахстане
Keywords
государственное управление, управление нефтяным комплексом, нефтегазовая промышленность, нефтегазовый сектор, нефтяные компании
Kazakhstan
0/0 Free
periodical press (Magazines)
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.
UDC:
517.9
Subject headings
- Differential equations. Integral equations
Annotation
Using the natural cubic spline function, this paper finds the numerical solution of Volterra-Fredholm integral equations of the second kind
Keywords
Volterra integral equation, Fredholm integral equation, spline function
Kazakhstan
0/0 Free
periodical press (Magazines)
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.
UDC:
517.9
Subject headings
- Differential equations. Integral equations
Annotation
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
Keywords
generalized Buckley-Leverett problem, auxiliary problem, finite differences method, nonlinear differential equations
Kazakhstan
0/0 Free
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
ASHYRALYEV А.
ON THE HYPERBOLIC TYPE DIFFERENTIAL EQUATION WITH TIME INVOLUTION
periodical press (Magazines)
0/0 Free
ТОКМУРЗИЕВ М. Т.
ГОСУДАРСТВЕННОЕ УПРАВЛЕНИЕ НЕФТЯНЫМ КОМПЛЕКСОМ В РЕСПУБЛИКЕ КАЗАХСТАН
periodical press (Magazines)
0/0 Free
SALIM S. H.
SOLVING VOLTERRA-FREDHOLM INTEGRAL EQUATIONS BY NATURAL CUBIC SPLINE FUNCTION
periodical press (Magazines)
0/0 Free
SINSOYSAL B.
NUMERICAL METHOD TO SOLUTION OF GENERALIZED MODEL BUCKLEY-LEVERETT IN A CLASS OF DISCONTINUOUS FUNCTIONS
periodical press (Magazines)
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