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Жанр:Естественные науки (natural_sciences)
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4011-4020 из 4425
периодические издания(Журналы)
ISMOILOV M. B.
Ismoilov, M. B. Hessian measures in the class of m-convex (m−cv) functions [Text] / M. B. Ismoilov, R. A. Sharipov // Қарағанды университетінің хабаршысы. Математика сериясы. - 2024. - № 3 (115). - P. 93-100. - Bibliogr.: p. 99-100 ISSN 2518-7929.
УДК:
517.518.244
Предметная рубрика
- Convex functions
Аннотация
In this work, a number of important properties of the class of m−cv functions are showed, in particular, Hessians Hk( u), k= 1,2, ..., n−m+ 1, in the class of bounded m−cv functions are studied
Ключевые слова
m-convex function, hessians, strongly m-subharmonic function, Borel measures, differential equations
Казахстаника
0/0 Свободно
периодические издания(Журналы)
KERIMBEKOV A.
Kerimbekov, A. Synthesis of uniformly distributed optimal control with nonlinear optimization of oscillatory processes [Text] / A. Kerimbekov, Zh. K. Asanova , A. K. Baetov // Қарағанды университетінің хабаршысы. Математика сериясы. - 2024. - № 3 (115). - P. 101-111. - Bibliogr.: p. 110-111 ISSN 2518-7929.
УДК:
517.9
Предметная рубрика
- Differential equations
Аннотация
In the article, the problem of synthesizing uniformly distributed optimal control for nonlinear optimization of oscillatory processes described by integro-differential partial differential equations with the Volterra integral operator was explored
Ключевые слова
Volterra operator, nonlinear optimization, Bellman functional, Frechet differential, Bellman type equations, synthesis of optimal control
Казахстаника
0/0 Свободно
периодические издания(Журналы)
ASHYRALYEV A.
Ashyralyev, A. Absolutely stable difference scheme for the delay partial differential equation with involution and Robin boundary condition [Text] / A. Ashyralyev, S. Ibrahim , E. Hincal // Қарағанды университетінің хабаршысы. Математика сериясы. - 2024. - № 3 (115). - P. 55-65. - Bibliogr.: p. 64-65 ISSN 2518-7929.
УДК:
517.9
Предметная рубрика
- Differential equations
Аннотация
This paper examines the initial value problem for a third-order delay partial differential equation with involution and Robin boundary condition
Ключевые слова
involution, numerical algorithm, Robin boundary condition, third order partial differentiale quations, delay
Казахстаника
0/0 Свободно
периодические издания(Журналы)
AISAGALIEV S.
Aisagaliev, S. Controllability and optimal fast operation of nonlinear systems [Text] / S. Aisagaliev, G. Korpebay // Қарағанды университетінің хабаршысы. Математика сериясы. - 2024. - № 3 (115). - P. 77-92. - Bibliogr.: p. 91-92 ISSN 2518-7929.
УДК:
517.957
Предметная рубрика
- Nonlinear equations and systems
Аннотация
A new method for solving the problem of controllability and optimal transient behavior of nonlinear systems subject to boundary conditions and constraints on control values was proposed
Ключевые слова
integrity constraints, integral equation, optimal performance, functional gradient, nonlinear systems
Казахстаника
0/0 Свободно
периодические издания(Журналы)
ASHYRALIYEV M.
Ashyraliyev, M. A stable difference scheme for the solution of a source identification problem for telegraph-parabolic equations [Text] / M. Ashyraliyev, M. A. Ashyralyyeva // Қарағанды университетінің хабаршысы. Математика сериясы. - 2024. - № 3 (115). - P. 46-54. - Bibliogr.: p. 52-53 ISSN 2518-7929.
УДК:
517.956.4
Предметная рубрика
- Parabolic equations and systems
Аннотация
In the present paper, a first order of accuracy difference scheme for the approximate solution of the inverse problem for telegraph-parabolic equations with an unknown spacewise dependent source term is constructed
Ключевые слова
Difference scheme, source identification problem, telegraph-parabolic equation, stability estimates, differential equations
Казахстаника
0/0 Свободно
периодические издания(Журналы)
NAURYZBAYEV B. A.
Nauryzbayev, B. A. Improving mathematical problem-sol ving skills with an intelligent self-learning system : a randomized controlled trial study [Text] / B. A. Nauryzbayev, Zh. Zh. Akhmetova , N. I. Pak [and others] // Алматы энергетика және байланыс университетінің хабаршысы. - 2023. - № 3. - 67-77 р.. - Bibliogr.: 76 p.
ISSN 2790-0886.
УДК:
519.85
Предметная рубрика
- Mathematical programming
Аннотация
The article discusses an intelligent self-learning system for analyzing the learning process of solving mathematical problems
Ключевые слова
Ml.net, machine learning, mathematics and artificial intelligence, mathematical programming, neural networks, artificial intelligence, artificial intelligence methods, solving mathematical problems
Казахстаника
0/0 Свободно
периодические издания(Журналы)
ASHUROV R. R.
Ashurov, R. R. On a non-local problem for a fractional differential equation of the Boussinesq type [Text] / R. R. Ashurov, Yu. E. Fayziev , M. U. Khudoykulova // Қарағанды университетінің хабаршысы. Математика сериясы. - 2024. - № 3 (115). - P. 34-45. - Bibliogr.: p. 44-45 ISSN 2518-7929.
УДК:
517.9
Предметная рубрика
- Differential equations
Аннотация
In this paper, a non-local problem for the Boussinesq type equation Dαtu(t) +ADαtu(t) +ν2Au(t) = 0,0< t < T,1< α <3/2 is studied, where Dαt is the Caputo fractional derivative, and A is an abstract operator
Ключевые слова
fractional equation, Caputo derivative, forward and inverse problems, Fourier method, Boussinesq type
Казахстаника
0/0 Свободно
периодические издания(Журналы)
KUTLAY H.
Kutlay, H. Existence of extremal solutions for a class of fractional integro-differential equations [Text] / H. Kutlay, A. Yakar // Қарағанды университетінің хабаршысы. Математика сериясы. - 2024. - № 3 (115). - P. 112-125. - Bibliogr.: p. 124-125 ISSN 2518-7929.
УДК:
517.9
Предметная рубрика
- Differential equations
Аннотация
In the study, the existence of solutions of a class of fractional integro-differential equations with boundary conditions was considered
Ключевые слова
Caputo derivative, extremal solutions, integro-differential equation, Riemann-Liouville integral, monotone iterative technique, upper and lower solutions
Казахстаника
0/0 Свободно
периодические издания(Журналы)
OLĞAR H.
Olğar, H. Operator-pencil treatment of multi-interval Sturm-Liouville equation with boundary-transmission conditions [Text] / H. Olğar, F. Muhtarov , O. Mukhtarov // Қарағанды университетінің хабаршысы. Математика сериясы. - 2024. - № 3 (115). - P. 126-136. - Bibliogr.: p. 134-135 ISSN 2518-7929.
УДК:
517.9
Предметная рубрика
- Differential equations. Integral equations
Аннотация
This paper is devoted to a new type of boundary-value problems for Sturm-Liouville equations defined on three disjoint intervals (−π, −π+d),(−π+d, π−d), and (π−d, π) together with eigenparameter dependent boundary conditions and with additional transmission conditions specified at the common end points −π+d and π−d, where 0< d < π
Ключевые слова
eigenvalues, transmission conditions, boundary-value-transmission problems, generalized eigenfunctions, lower boundestimation, Rayleigh’s method
Казахстаника
0/0 Свободно
периодические издания(Журналы)
ALIYEV N.
Aliyev, N. The boundary value problem for an ordinary linear half-order differential equation [Text] / N. Aliyev, M. Rasulov , B. Sinsoysal // Қарағанды университетінің хабаршысы. Математика сериясы. - 2024. - № 3 (115). - P. 5-12. - Bibliogr.: p. 11 ISSN 2518-7929.
УДК:
517.9
Предметная рубрика
- Differential equations
Аннотация
This study is devoted to the study of the solution of a boundary value problem for an ordinary lineardifferential equation of half order with constant coefficients
Ключевые слова
half-order equations, boundary value problem, fundamental solution, Fredholm property, Mittag-Leffler functions, fundamental solution, basic relation
Казахстаника
0/0 Свободно
ISMOILOV M. B.
HESSIAN MEASURES IN THE CLASS OF M-CONVEX (M−CV) FUNCTIONS
периодические издания(Журналы)
0/0 Свободно
KERIMBEKOV A.
SYNTHESIS OF UNIFORMLY DISTRIBUTED OPTIMAL CONTROL WITH NONLINEAR OPTIMIZATION OF OSCILLATORY PROCESSES
периодические издания(Журналы)
0/0 Свободно
ASHYRALYEV A.
ABSOLUTELY STABLE DIFFERENCE SCHEME FOR THE DELAY PARTIAL DIFFERENTIAL EQUATION WITH INVOLUTION AND ROBIN BOUNDARY CONDITION
периодические издания(Журналы)
0/0 Свободно
AISAGALIEV S.
CONTROLLABILITY AND OPTIMAL FAST OPERATION OF NONLINEAR SYSTEMS
периодические издания(Журналы)
0/0 Свободно
ASHYRALIYEV M.
A STABLE DIFFERENCE SCHEME FOR THE SOLUTION OF A SOURCE IDENTIFICATION PROBLEM FOR TELEGRAPH-PARABOLIC EQUATIONS
периодические издания(Журналы)
0/0 Свободно
NAURYZBAYEV B. A.
IMPROVING MATHEMATICAL PROBLEM-SOL VING SKILLS WITH AN INTELLIGENT SELF-LEARNING SYSTEM : A RANDOMIZED CONTROLLED TRIAL STUDY
периодические издания(Журналы)
0/0 Свободно
ASHUROV R. R.
ON A NON-LOCAL PROBLEM FOR A FRACTIONAL DIFFERENTIAL EQUATION OF THE BOUSSINESQ TYPE
периодические издания(Журналы)
0/0 Свободно
KUTLAY H.
EXISTENCE OF EXTREMAL SOLUTIONS FOR A CLASS OF FRACTIONAL INTEGRO-DIFFERENTIAL EQUATIONS
периодические издания(Журналы)
0/0 Свободно
OLĞAR H.
OPERATOR-PENCIL TREATMENT OF MULTI-INTERVAL STURM-LIOUVILLE EQUATION WITH BOUNDARY-TRANSMISSION CONDITIONS
периодические издания(Журналы)
0/0 Свободно
ALIYEV N.
THE BOUNDARY VALUE PROBLEM FOR AN ORDINARY LINEAR HALF-ORDER DIFFERENTIAL EQUATION
периодические издания(Журналы)
0/0 Свободно