Electronic catalog
Start with O
language:English
Search result:
321-330 of 426
periodical press (Magazines)
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.
UDC:
517.518.4
Subject headings
- Trigonometric series
Annotation
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
Keywords
Lorentz space, Sobolev class, mixed derivative, trigonometric polynomial, M-term approximation, Соболев класы, Лоренц кеңiстiгi, пространство Лоренца, класс Соболева
Kazakhstan
0/0 Free
periodical press (Magazines)
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.
UDC:
517.956.4
Subject headings
- Parabolic equations and systems
Annotation
In this paper, a boundary control problem associated with a fourth-order parabolic equationin a bounded two-dimensional domain was considered
Keywords
initial-boundary problem, fourth-order parabolic equation, admissible control, Volterra integral equation, Laplace transform method, төртiншi реттi параболалық теңдеу, параболическое уравнение четвертого порядка
Kazakhstan
0/0 Free
periodical press (Magazines)
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.
UDC:
517.9
Subject headings
- Differential equations. Integral equations
Annotation
In this work, a new concept of the stream function and derive the equation for the streamfunction in the three-dimensional case was introduced
Keywords
spectral problem, stream function, Навье-Стокс жүйесi, би-Лапласиан, Navier-Stokes system, bi-Laplacian, cистема Навье-Стокса
Kazakhstan
0/0 Free
periodical press (Magazines)
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.
UDC:
517.9
Subject headings
- Differential equations. Integral equations
Annotation
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
Keywords
Green function, Laplace equation, Dirichlet problem, simple layer potential, Лaплaс теңдеуi, Грин функциясы, Дирихле есебi
Kazakhstan
0/0 Free
periodical press (Magazines)
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.
UDC:
517.9
Subject headings
- Differential equations. Integral equations
Annotation
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
Keywords
resolvent, third order differential equation, Dirichlet problem, coercive estimates, дифференциалдық теңдеулер, Дирихле есебі, дифференциальные уравнения, задача Дирихле
Kazakhstan
0/0 Free
periodical press (Magazines)
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.
UDC:
347.214.2
Subject headings
- Real estate activities
Annotation
The article examines the effectiveness of real estate activity in the Republic of Kazakhstan, the introduction of independent legal regulation
Keywords
real estate activity, realtors, real estate activity, legal monitoring of real estate activity, real estate transactions, licensing of realtors
Kazakhstan
0/0 Free
periodical press (Magazines)
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.
UDC:
553.982.2
Subject headings
- Oil fields
Annotation
The object of study is the Beshkent trough of the Bukhara Khiva region (BHR), which is the most promising for discovering new hydrocarbon deposits
Keywords
oil and gas potential, hydrocarbons deposits, field, density, porosity, tectonics
Kazakhstan
0/0 Free
periodical press (Magazines)
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.
UDC:
517
Subject headings
- Analysis
Annotation
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
Keywords
parabolic equation, inverse problem, classical solution, Fourier method, strongly regular boundaryconditions, Riesz basis, параболалық теңдеу, Фурье әдiс, параболическое уравнение, метод Фурье
Kazakhstan
0/0 Free
periodical press (Magazines)
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.
UDC:
517.957
Subject headings
- Nonlinear equations and systems
Annotation
The article examines the global solvability and unsolvability of a nonlinear diffusion system with nonlinear boundaryconditions in the case of slow diffusion
Keywords
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
Kazakhstan
0/0 Free
periodical press (Magazines)
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.
UDC:
517
Subject headings
- Analysis
Annotation
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
Keywords
Navier-Stokes system, degenerating domain, Galerkin method, Навье-Стокс жүйесi, cистема Навье-Стокса
Kazakhstan
0/0 Free
AKISHEV G.
ON ESTIMATES OF M-TERM APPROXIMATIONS OF THE SOBOLEV CLASS IN THE LORENTZ SPACE
periodical press (Magazines)
0/0 Free
DEKHKONOV F. N.
ON THE TIME-OPTIMAL CONTROL PROBLEM FOR A FOURTH ORDER PARABOLICEQUATION IN A TWO-DIMENSIONAL DOMAIN
periodical press (Magazines)
0/0 Free
JENALIYEV M. T.
ON THE SPECTRAL PROBLEM FOR THREE-DIMESIONALBI-LAPLACIAN IN THE UNIT SPHERE
periodical press (Magazines)
0/0 Free
KALMENOV T. SH.
ON A METHOD FOR CONSTRUCTING THE GREEN FUNCTION OF THE DIRICHLETPROBLEM FOR THE LAPLACE EQUATION
periodical press (Magazines)
0/0 Free
SULEIMBEKOVA A. O.
ON THE EXISTENCE AND COERCIVE ESTIMATES OF SOLUTIONS TO THE DIRICHLETPROBLEM FOR A CLASS OF THIRD-ORDER DIFFERENTIAL EQUATIONS
periodical press (Magazines)
0/0 Free
KAZBAYEVA A. G.
ON THE ISSUE OF LEGAL REGULATION OF REALTOR ACTIVITIES IN THE REPUBLIC OF KAZAKHSTAN
periodical press (Magazines)
0/0 Free
KHAYITOV O. G.
ON SOME RESULTS OF STUDYING THE CAUSES OF ANOMALOUSLY HIGH FORMATION PRESSURE ON THE HYDROCARBONS DEPOSITS OF THE BASHKENT DEEP
periodical press (Magazines)
0/0 Free
IMANBETOVA A. B.
ON SOLVABILITY OF THE INVERSE PROBLEM FOR A FOURTH-ORDER PARABOLICEQUATION WITH A COMPLEX-VALUED COEFFICIENT
periodical press (Magazines)
0/0 Free
ARIPOV M. M.
ON THE BEHAVIORS OF SOLUTIONS OF A NONLINEAR DIFFUSION SYSTEM WITH A SOURCE AND NONLINEAR BOUNDARY CONDITIONS
periodical press (Magazines)
0/0 Free
JENALIYEV M. T.
ON THE SOLVABILITY OF A BOUNDARY VALUE PROBLEM FOR A TWO-DIMENSIONAL SYSTEM OF NAVIER-STOKES EQUATIONS IN A CONE
periodical press (Magazines)
0/0 Free