Электронный каталог
Язык издания:Английский
Каталог:Статьи
Результат поиска:
461-470 из 2260
периодические издания(Журналы)
HEZENCI F.
Hezenci, F. A remark on Schottky representations and Reidemeister torsion [Text] / F. Hezenci, Y. Sozen // Қарағанды университетінің хабаршысы. Математика сериясы. - 2023. - № 1 (109). - P. 81-93. - Bibliogr.: p. 91-92 ISSN 2518-7929.
УДК:
515.1
Предметная рубрика
- Topology
Аннотация
The present paper establishes a formula of Reidemeister torsion for Schottky representations
Ключевые слова
Schottky representation, Reidemeister torsion, representation varieties, Atiyah-Bott-Goldman symplectic form, Thurston symplectic form
Казахстаника
0/0 Свободно
периодические издания(Журналы)
BURANAY S. C.
Buranay, S. C. Solution of heat equation by a novel implicit scheme using block hybrid preconditioning of the conjugate gradient method [Text] / S. C. Buranay, N. Arshad // Қарағанды университетінің хабаршысы. Математика сериясы. - 2023. - № 1 (109). - P. 58-80. - Bibliogr.: p. 77-79 ISSN 2518-7929.
УДК:
517.9
Предметная рубрика
- Differential equations. Integral equations
Аннотация
The main goal of the study is the approximation of the solution to the Dirichlet boundary value problem (DBVP) of the heat equation on a rectangle by developing a new difference method on a grid system of hexagons
Ключевые слова
heat equation, implicit scheme, hexagonal grid, stability analysis, symmetric positive definite matrix, approximate inverse, incomplete block factorization, block hybrid preconditioning, conjugate gradient method
Казахстаника
0/0 Свободно
периодические издания(Журналы)
KALIKHMAN T. P.
Kalikhman, T. P. Review of the current state of territorial nature protection of Siberia and Mongolia [Text] / T. P. Kalikhman // География және су ресурстары. - 2023. - № 2. - 48-59 р.. - Bibliogr.: 57-58 р.
ISSN 2957-9856.
УДК:
502.4
Предметная рубрика
- Protected natural areas (water areas) in general and their management
Аннотация
The article analyzes the system of protected areas of Siberia and Mongolia, their structures, and legislative bases
Ключевые слова
territorial nature protection, the structure of territorial nature protection, transboundary protected natural areas, protected natural areas, maps of protected areas, Mongolian protected areas, Russian protected areas, specially protected natural areas
Казахстаника
0/0 Свободно
периодические издания(Журналы)
ARIPOV M. M.
Aripov, M. M. On convergence of difference schemes of high accuracy for one pseudo-parabolic Sobolev type equation [Text] / M. M. Aripov, D. Utebaev , M. M. Kazimbetova // Қарағанды университетінің хабаршысы. Математика сериясы. - 2023. - № 1 (109). - P. 24-37. - Bibliogr.: p. 34-35 ISSN 2518-7929.
УДК:
517.95:519.6
Предметная рубрика
- Differential equations. Computational mathematics
Аннотация
Difference schemes of the finite difference method and the finite element method of high-order accuracy in time and space are proposed and investigated for a pseudo-parabolic Sobolev type equation
Ключевые слова
pseudo-parabolic equation, difference schemes, finite difference method, finite element method, generalized solutions, a priori estimates, stability, convergence, accuracy
Казахстаника
0/0 Свободно
периодические издания(Журналы)
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.
УДК:
517.28
Предметная рубрика
- Involutory type hyperbolic equation
Аннотация
In the present paper, the initial value problem for the hyperbolic type involutory in t second order linear partial differential equation is studied
Ключевые слова
stability, Banach space, partial differential equation, hyperbolic differential equations, differential operator
Казахстаника
0/0 Свободно
периодические издания(Журналы)
BEGISHBEK KYZY M.
Begishbek kyzy, M. Problems of women in the water sector of Kyrgyzstan : a short review [Text] / M. Begishbek kyzy // География және су ресурстары. - 2023. - № 3. - 16-22 р.. - Bibliogr.: 20-21 р.
ISSN 2957-9856.
УДК:
556.18
Предметная рубрика
- Water management. Applied hydrology. Regulation of hydrological conditions
Аннотация
The article examines the problems of women in the water sector of Kyrgyzstan
Ключевые слова
the water sector, the water problem, women in the water sector, water management in Kyrgyzstan, Kyrgyz women, the situation of Kyrgyz women, migration of men
Казахстаника
0/0 Свободно
периодические издания(Журналы)
DARIBAYEVA M. ZH.
Daribayeva, M. Zh. Specifics of tax analysis of the commercial organization [Text] / M. Zh. Daribayeva Zhang Yin // Транзитная экономика. - 2017. - № 1. - 18-25 р.. - Bibliogr.: 23 р. ISSN 2413-4953.
УДК:
336.22
Предметная рубрика
- Taxes
Аннотация
The article discusses the methods of conducting a tax analysis of a commercial organization
Ключевые слова
taxes, tax analysis, financial statements, tax burden, direct taxes, indirect taxes, taxes of a commercial organization
Казахстаника
0/0 Свободно
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
HEZENCI F.
A REMARK ON SCHOTTKY REPRESENTATIONS AND REIDEMEISTER TORSION
периодические издания(Журналы)
0/0 Свободно
BURANAY S. C.
SOLUTION OF HEAT EQUATION BY A NOVEL IMPLICIT SCHEME USING BLOCK HYBRID PRECONDITIONING OF THE CONJUGATE GRADIENT METHOD
периодические издания(Журналы)
0/0 Свободно
KALIKHMAN T. P.
REVIEW OF THE CURRENT STATE OF TERRITORIAL NATURE PROTECTION OF SIBERIA AND MONGOLIA
периодические издания(Журналы)
0/0 Свободно
ARIPOV M. M.
ON CONVERGENCE OF DIFFERENCE SCHEMES OF HIGH ACCURACY FOR ONE PSEUDO-PARABOLIC SOBOLEV TYPE EQUATION
периодические издания(Журналы)
0/0 Свободно
ASHYRALYEV А.
ON THE HYPERBOLIC TYPE DIFFERENTIAL EQUATION WITH TIME INVOLUTION
периодические издания(Журналы)
0/0 Свободно
BEGISHBEK KYZY M.
PROBLEMS OF WOMEN IN THE WATER SECTOR OF KYRGYZSTAN : A SHORT REVIEW
периодические издания(Журналы)
0/0 Свободно
DARIBAYEVA M. ZH.
SPECIFICS OF TAX ANALYSIS OF THE COMMERCIAL ORGANIZATION
периодические издания(Журналы)
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