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321-330 из 426
периодические издания(Журналы)
AKISHEV G.
Akishev, G. On estimates of M-term approximations of the Sobolev class in the Lorentz space [Text] / G. Akishev, A. Kh. Myrzagaliyeva // Қарағанды университетінің хабаршысы. Математика сериясы. - 2024. - № 2 (114). - P. 4-21. - Bibliogr.: p. 17-18 ISSN 2518-7929.
УДК:
517.518.4
Предметная рубрика
- Trigonometric series
Аннотация
In the paper spaces of periodic functions of several variables were considered, namely the Lorentz space L2; (Tm), the class of functions with bounded mixed fractional derivative Wr 2; , 1 < 1, and the order of the best M-term approximation of a function f 2 Lp; (Tm) by trigonometric polynomials was studied
Ключевые слова
Lorentz space, Sobolev class, mixed derivative, trigonometric polynomial, M-term approximation, Соболев класы, Лоренц кеңiстiгi, пространство Лоренца, класс Соболева
Казахстаника
0/0 Свободно
периодические издания(Журналы)
DEKHKONOV F. N.
Dekhkonov, F. N. On the time-optimal control problem for a fourth order parabolicequation in a two-dimensional domain [Text] / F. N. Dekhkonov // Қарағанды университетінің хабаршысы. Математика сериясы. - 2024. - Vol. 29, № 2 (114). - P. 57-70. - Bibliogr.: p. 66-68 ISSN 2518-7929.
УДК:
517.956.4
Предметная рубрика
- Parabolic equations and systems
Аннотация
In this paper, a boundary control problem associated with a fourth-order parabolic equationin a bounded two-dimensional domain was considered
Ключевые слова
initial-boundary problem, fourth-order parabolic equation, admissible control, Volterra integral equation, Laplace transform method, төртiншi реттi параболалық теңдеу, параболическое уравнение четвертого порядка
Казахстаника
0/0 Свободно
периодические издания(Журналы)
JENALIYEV M. T.
Jenaliyev, M. T. On the spectral problem for three-dimesionalbi-Laplacian in the unit sphere [Text] / M. T. Jenaliyev, A. M. Serik // Қарағанды университетінің хабаршысы. Математика сериясы. - 2024. - Vol. 29, № 2 (114). - P. 86-104. - Bibliogr.: p. 98-100 ISSN 2518-7929.
УДК:
517.9
Предметная рубрика
- Differential equations. Integral equations
Аннотация
In this work, a new concept of the stream function and derive the equation for the streamfunction in the three-dimensional case was introduced
Ключевые слова
spectral problem, stream function, Навье-Стокс жүйесi, би-Лапласиан, Navier-Stokes system, bi-Laplacian, cистема Навье-Стокса
Казахстаника
0/0 Свободно
периодические издания(Журналы)
KALMENOV T. SH.
Kalmenov, T. Sh. On a method for constructing the Green function of the Dirichletproblem for the Laplace equation [Text] / T. Sh. Kalmenov // Қарағанды университетінің хабаршысы. Математика сериясы. - 2024. - № 2 (114). - P. 105-113. - Bibliogr.: p. 110-111 ISSN 2518-7929.
УДК:
517.9
Предметная рубрика
- Differential equations. Integral equations
Аннотация
In this work, using the boundary condition of the Newtonian (volume)potential and the spectral property of the potential of a simple layer, the Green function of the Dirichletproblem for the Laplace equation was constructed
Ключевые слова
Green function, Laplace equation, Dirichlet problem, simple layer potential, Лaплaс теңдеуi, Грин функциясы, Дирихле есебi
Казахстаника
0/0 Свободно
периодические издания(Журналы)
SULEIMBEKOVA A. O.
Suleimbekova, A. O. On the existence and coercive estimates of solutions to the Dirichletproblem for a class of third-order differential equations [Text] / A. O. Suleimbekova, B. M. Musilimov // Қарағанды университетінің хабаршысы. Математика сериясы. - 2024. - Vol. 29, № 2 (114). - P. 178-185. - Bibliogr.: p. 183 ISSN 2518-7929.
УДК:
517.9
Предметная рубрика
- Differential equations. Integral equations
Аннотация
In this paper, the properties of solutions of а class of the third order degenerate partial differential equations with variable coefficients given in a rectangle were studied
Ключевые слова
resolvent, third order differential equation, Dirichlet problem, coercive estimates, дифференциалдық теңдеулер, Дирихле есебі, дифференциальные уравнения, задача Дирихле
Казахстаника
0/0 Свободно
периодические издания(Журналы)
KAZBAYEVA A. G.
Kazbayeva, A. G. On the issue of legal regulation of realtor activities in the Republic of Kazakhstan [Text] / A. G. Kazbayeva, S. I. Klimkin // Қазақстан Республикасы Заңнама және құқықтық ақпарат институтының жаршысы. - 2024. - № 1. - 204-212 р.. - Bibliogr.: 211-212 р.
ISSN 2788-5283.
УДК:
347.214.2
Предметная рубрика
- Real estate activities
Аннотация
The article examines the effectiveness of real estate activity in the Republic of Kazakhstan, the introduction of independent legal regulation
Ключевые слова
real estate activity, realtors, real estate activity, legal monitoring of real estate activity, real estate transactions, licensing of realtors
Казахстаника
0/0 Свободно
периодические издания(Журналы)
KHAYITOV O. G.
Khayitov, O. G. On some results of studying the causes of anomalously high formation pressure on the hydrocarbons deposits of the Bashkent deep [Text] / O. G. Khayitov, A. A. Umirzokov , Sh. Sh. Turdiev [et al.] // Қазақстан Республикасы Ұлттық ғылым академиясының хабарлары. Геология және техникалық ғылымдар сериясы. - 2022. - № 6 (456). - P. 247-260. - Bibliogr.: p. 259-260 ISSN 2224-5278.
УДК:
553.982.2
Предметная рубрика
- Oil fields
Аннотация
The object of study is the Beshkent trough of the Bukhara Khiva region (BHR), which is the most promising for discovering new hydrocarbon deposits
Ключевые слова
oil and gas potential, hydrocarbons deposits, field, density, porosity, tectonics
Казахстаника
0/0 Свободно
периодические издания(Журналы)
IMANBETOVA A. B.
Imanbetova, A. B. On solvability of the inverse problem for a fourth-order parabolicequation with a complex-valued coefficient [Text] / A. B. Imanbetova, A. A. Sarsenbi , B. Seilbekov // Қарағанды университетінің хабаршысы. Математика сериясы. - 2024. - № 1 (113). - P. 60-72. - Bibliogr.: p. 70-71 ISSN 2518-7929.
УДК:
517
Предметная рубрика
- Analysis
Аннотация
In this paper, the inverse problem for a fourth-order parabolic equation with a variable complex-valuedcoefficient is studied by the method of separation of variables
Ключевые слова
parabolic equation, inverse problem, classical solution, Fourier method, strongly regular boundaryconditions, Riesz basis, параболалық теңдеу, Фурье әдiс, параболическое уравнение, метод Фурье
Казахстаника
0/0 Свободно
периодические издания(Журналы)
ARIPOV M. M.
Aripov, M. M. On the behaviors of solutions of a nonlinear diffusion system with a source and nonlinear boundary conditions [Text] / M. M. Aripov, Z. R. Rakhmonov , A. A. Alimov // Қарағанды университетінің хабаршысы. Математика сериясы. - 2024. - № 1 (113). - P. 28-45. - Bibliogr.: p. 43-44 ISSN 2518-7929.
УДК:
517.957
Предметная рубрика
- Nonlinear equations and systems
Аннотация
The article examines the global solvability and unsolvability of a nonlinear diffusion system with nonlinear boundaryconditions in the case of slow diffusion
Ключевые слова
critical global existence curve, egenerate parabolicsystems, blow-up, nonlinear boundary condition, critical exponents of Fujita type, бейсызықты диффузиялық жүйе, нелинейное граничное условие, критические показатели типа Фуджиты, Фуджита типтi критикалық көрсеткiш
Казахстаника
0/0 Свободно
периодические издания(Журналы)
JENALIYEV M. T.
Jenaliyev, M. T. On the solvability of a boundary value problem for a two-dimensional system of Navier-Stokes equations in a cone [Text] / M. T. Jenaliyev, A. M. Serik , M. G. Yergaliyev // Қарағанды университетінің хабаршысы. Математика сериясы. - 2024. - № 1 (113). - P. 84-100. - Bibliogr.: p. 96-98 ISSN 2518-7929.
УДК:
517
Предметная рубрика
- Analysis
Аннотация
In this work, we are exploring the solvability of a boundary value problem for a two-dimensional Navier-Stokes systemin a non-cylindrical degenerating domain, namely, in a cone with its vertex at the origin
Ключевые слова
Navier-Stokes system, degenerating domain, Galerkin method, Навье-Стокс жүйесi, cистема Навье-Стокса
Казахстаника
0/0 Свободно
AKISHEV G.
ON ESTIMATES OF M-TERM APPROXIMATIONS OF THE SOBOLEV CLASS IN THE LORENTZ SPACE
периодические издания(Журналы)
0/0 Свободно
DEKHKONOV F. N.
ON THE TIME-OPTIMAL CONTROL PROBLEM FOR A FOURTH ORDER PARABOLICEQUATION IN A TWO-DIMENSIONAL DOMAIN
периодические издания(Журналы)
0/0 Свободно
JENALIYEV M. T.
ON THE SPECTRAL PROBLEM FOR THREE-DIMESIONALBI-LAPLACIAN IN THE UNIT SPHERE
периодические издания(Журналы)
0/0 Свободно
KALMENOV T. SH.
ON A METHOD FOR CONSTRUCTING THE GREEN FUNCTION OF THE DIRICHLETPROBLEM FOR THE LAPLACE EQUATION
периодические издания(Журналы)
0/0 Свободно
SULEIMBEKOVA A. O.
ON THE EXISTENCE AND COERCIVE ESTIMATES OF SOLUTIONS TO THE DIRICHLETPROBLEM FOR A CLASS OF THIRD-ORDER DIFFERENTIAL EQUATIONS
периодические издания(Журналы)
0/0 Свободно
KAZBAYEVA A. G.
ON THE ISSUE OF LEGAL REGULATION OF REALTOR ACTIVITIES IN THE REPUBLIC OF KAZAKHSTAN
периодические издания(Журналы)
0/0 Свободно
KHAYITOV O. G.
ON SOME RESULTS OF STUDYING THE CAUSES OF ANOMALOUSLY HIGH FORMATION PRESSURE ON THE HYDROCARBONS DEPOSITS OF THE BASHKENT DEEP
периодические издания(Журналы)
0/0 Свободно
IMANBETOVA A. B.
ON SOLVABILITY OF THE INVERSE PROBLEM FOR A FOURTH-ORDER PARABOLICEQUATION WITH A COMPLEX-VALUED COEFFICIENT
периодические издания(Журналы)
0/0 Свободно
ARIPOV M. M.
ON THE BEHAVIORS OF SOLUTIONS OF A NONLINEAR DIFFUSION SYSTEM WITH A SOURCE AND NONLINEAR BOUNDARY CONDITIONS
периодические издания(Журналы)
0/0 Свободно
JENALIYEV M. T.
ON THE SOLVABILITY OF A BOUNDARY VALUE PROBLEM FOR A TWO-DIMENSIONAL SYSTEM OF NAVIER-STOKES EQUATIONS IN A CONE
периодические издания(Журналы)
0/0 Свободно