Elektrondy katalog
O басталады
Janr:Жаратылыстану ғылымдары (natural_sciences)
Nátejeler:
61-70 ız 104
мерзімді басылым(Журналы)
OMAROVA B. ZH.
Omarova, B. Zh. On multiperiodic solutions of perturbed nonlinear autonomous systems with the differentiation operator on a vector field [Text] / B. Zh. Omarova, Zh. A. Sartabanov // Eurasian Mathematical Journal. - 2021. - V. 12, № 1. - p. 68-81. ISSN 2077-9879.
ÁOJ:
517.988.6
Taqyrypty aıdarlar
- Nonlinear autonomous
Ańdatpa
A quasilinear system with the differentiation operator with respect to the directions of vector fields specified by Lyapunov's system with respect to space independent variables and a multiperiodic system with respect to time variables is considered
Kіlt sózder
multiperiodic solutions, autonomous system, differentiation operator, Lyapunov's vector field, perturbation
Qazaqstandуq
0/0 Bos
мерзімді басылым(Журналы)
KIM L. V.
Kim, L. V. On the jumping spider (Araneae, Salticidae) fauna of Almaty city (Republic of Kazakhstan) [Text] / L. V. Kim, M. Ye. Salmenova , A. B. Yeszhanov // Қарағанды университетінің хабаршысы. Биология. Медицина. География сериясы. - 2023. - № 3 (111). - P. 99-104. - Bibliogr.: p. 103-104 ISSN 2518-7201.
ÁOJ:
595.444.4
Taqyrypty aıdarlar
- Salticidae. Jumping spiders
Ańdatpa
This study provides new records of some jumping spider species from Almaty city
Kіlt sózder
Aranei, fauna, spider fauna, spiders, environmental community
Qazaqstandуq
0/0 Bos
мерзімді басылым(Журналы)
AIDA-ZADE K. R.
Aida-zade, K. R. On the class of pointwise and integrally loaded differential equations [Text] / K. R. Aida-zade, V. M. Abdullayev // Қарағанды университетінің хабаршысы. Математика сериясы. - 2024. - № 1 (113). - P. 5-27. - Bibliogr.: p. 16-17 ISSN 2518-7929.
ÁOJ:
517.9
Taqyrypty aıdarlar
- Differential equations. Integral equations
Ańdatpa
The paper describes the application of the method using the example of solving a test model problem
Kіlt sózder
integro-differential equation, system of loaded equations, integral conditions, conditions of existenceand uniqueness, интегралдық-дифференциалдық теңдеу, интегро-дифференциальное уравнение
Qazaqstandуq
0/0 Bos
мерзімді басылым(Журналы)
AKYLBAYEV M. I.
Akylbayev, M. I. On some estimations of deviations between real solution andnumerical solution of dynamical equations with regard for Baumgarteconstraint stabilization [Text] / M. I. Akylbayev, I. E. Kaspirovich // Қарағанды университетінің хабаршысы. Математика сериясы. - 2024. - № 1 (113). - P. 21-27. - Bibliogr.: p. 25-26 ISSN 2518-7929.
ÁOJ:
517.9
Taqyrypty aıdarlar
- Differential equations. Integral equations
Ańdatpa
The paper considers the estimation of the error of the numerical solution obtained by the first-order Euler method
Kіlt sózder
constraint stabilization, numerical integration, system of differential levels, numerical solution, difference scheme, байланыстарды тұрақтандыру, сандық интегралдау, стабилизация связей, численное интегрирование
Qazaqstandуq
0/0 Bos
мерзімді басылым(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.
ÁOJ:
517.518.4
Taqyrypty aıdarlar
- Trigonometric series
Ańdatpa
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
Kіlt sózder
Lorentz space, Sobolev class, mixed derivative, trigonometric polynomial, M-term approximation, Лоренц кеңiстiгi, Соболев класы, пространство Лоренца, класс Соболева
Qazaqstandуq
0/0 Bos
мерзімді басылым(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.
ÁOJ:
517.956.4
Taqyrypty aıdarlar
- Parabolic equations and systems
Ańdatpa
In this paper, a boundary control problem associated with a fourth-order parabolic equationin a bounded two-dimensional domain was considered
Kіlt sózder
initial-boundary problem, fourth-order parabolic equation, admissible control, Volterra integral equation, Laplace transform method, төртiншi реттi параболалық теңдеу, параболическое уравнение четвертого порядка
Qazaqstandуq
0/0 Bos
мерзімді басылым(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.
ÁOJ:
517.9
Taqyrypty aıdarlar
- Differential equations. Integral equations
Ańdatpa
In this work, a new concept of the stream function and derive the equation for the streamfunction in the three-dimensional case was introduced
Kіlt sózder
Navier-Stokes system, bi-Laplacian, spectral problem, stream function, Навье-Стокс жүйесi, би-Лапласиан, cистема Навье-Стокса
Qazaqstandуq
0/0 Bos
мерзімді басылым(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.
ÁOJ:
517.9
Taqyrypty aıdarlar
- Differential equations. Integral equations
Ańdatpa
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
Kіlt sózder
Laplace equation, Green function, Dirichlet problem, simple layer potential, Лaплaс теңдеуi, Грин функциясы, Дирихле есебi
Qazaqstandуq
0/0 Bos
мерзімді басылым(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.
ÁOJ:
517.9
Taqyrypty aıdarlar
- Differential equations. Integral equations
Ańdatpa
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
Kіlt sózder
resolvent, third order differential equation, Dirichlet problem, coercive estimates, дифференциалдық теңдеулер, Дирихле есебі, дифференциальные уравнения, задача Дирихле
Qazaqstandуq
0/0 Bos
мерзімді басылым(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.
ÁOJ:
553.982.2
Taqyrypty aıdarlar
- Oil fields
Ańdatpa
The object of study is the Beshkent trough of the Bukhara Khiva region (BHR), which is the most promising for discovering new hydrocarbon deposits
Kіlt sózder
oil and gas potential, hydrocarbons deposits, field, density, porosity, tectonics
Qazaqstandуq
0/0 Bos
OMAROVA B. ZH.
ON MULTIPERIODIC SOLUTIONS OF PERTURBED NONLINEAR AUTONOMOUS SYSTEMS WITH THE DIFFERENTIATION OPERATOR ON A VECTOR FIELD
мерзімді басылым(Журналы)
0/0 Bos
KIM L. V.
ON THE JUMPING SPIDER (ARANEAE, SALTICIDAE) FAUNA OF ALMATY CITY (REPUBLIC OF KAZAKHSTAN)
мерзімді басылым(Журналы)
0/0 Bos
AIDA-ZADE K. R.
ON THE CLASS OF POINTWISE AND INTEGRALLY LOADED DIFFERENTIAL EQUATIONS
мерзімді басылым(Журналы)
0/0 Bos
AKYLBAYEV M. I.
ON SOME ESTIMATIONS OF DEVIATIONS BETWEEN REAL SOLUTION ANDNUMERICAL SOLUTION OF DYNAMICAL EQUATIONS WITH REGARD FOR BAUMGARTECONSTRAINT STABILIZATION
мерзімді басылым(Журналы)
0/0 Bos
AKISHEV G.
ON ESTIMATES OF M-TERM APPROXIMATIONS OF THE SOBOLEV CLASS IN THE LORENTZ SPACE
мерзімді басылым(Журналы)
0/0 Bos
DEKHKONOV F. N.
ON THE TIME-OPTIMAL CONTROL PROBLEM FOR A FOURTH ORDER PARABOLICEQUATION IN A TWO-DIMENSIONAL DOMAIN
мерзімді басылым(Журналы)
0/0 Bos
JENALIYEV M. T.
ON THE SPECTRAL PROBLEM FOR THREE-DIMESIONALBI-LAPLACIAN IN THE UNIT SPHERE
мерзімді басылым(Журналы)
0/0 Bos
KALMENOV T. SH.
ON A METHOD FOR CONSTRUCTING THE GREEN FUNCTION OF THE DIRICHLETPROBLEM FOR THE LAPLACE EQUATION
мерзімді басылым(Журналы)
0/0 Bos
SULEIMBEKOVA A. O.
ON THE EXISTENCE AND COERCIVE ESTIMATES OF SOLUTIONS TO THE DIRICHLETPROBLEM FOR A CLASS OF THIRD-ORDER DIFFERENTIAL EQUATIONS
мерзімді басылым(Журналы)
0/0 Bos
KHAYITOV O. G.
ON SOME RESULTS OF STUDYING THE CAUSES OF ANOMALOUSLY HIGH FORMATION PRESSURE ON THE HYDROCARBONS DEPOSITS OF THE BASHKENT DEEP
мерзімді басылым(Журналы)
0/0 Bos