Electronic catalog
language:English
catalogue:Articles
Search result:
1151-1160 of 2279
periodical press (Magazines)
TEMIRKHANOVA A. M.
Temirkhanova, A. M. Criteria for the boundedness of a certain class of matrix operators from lpv into lqu [Text] / A. M. Temirkhanova, A. T. Beszhanova // Қарағанды университетінің хабаршысы. Математика сериясы. - 2023. - № 3 (111). - P. 122-137. - Bibliogr.: p. 135-136 ISSN 2518-7929.
UDC:
517.98
Subject headings
- Functional analysis and operator theory
Annotation
This paper deals with the problem of boundedness of matrix operators from lpv into lqu for 1 < q < p < 1
Keywords
matrix operator, conjugate operator, weight sequence, boundedness, weight inequalities, weight Lebesgue space, Oinarov’s condition, Hardy operator, Hardy inequality, matrix
Kazakhstan
0/0 Free
periodical press (Magazines)
ABDIMANAPOVA P. B.
Abdimanapova, P. B. Well-posedness criteria for one family of boundary value problems [Text] / P. B. Abdimanapova, S. M. Temesheva // Қарағанды университетінің хабаршысы. Математика сериясы. - 2023. - № 4 (112). - P. 5-20. - Bibliogr.: p. 16-17 ISSN 2518-7929
.
UDC:
517.9
Subject headings
- Differential equations. Integral equations
Annotation
This paper considers a family of linear two-point boundary value problems for systems of ordinary differential equations
Keywords
multipoint boundary value problem, existence of solution, well-posedness, necessary and sufficient condition, шеттік есеп, дифференциальные уравнения, дифференциалдық теңдеулер, краевые задачи
Kazakhstan
0/0 Free
periodical press (Magazines)
AKHAZHANOV T. B.
Akhazhanov, T. B. Coefficients of multiple Fourier-Haar series and variational modulus of continuity [Text] / T. B. Akhazhanov, N. А. Bokayev , D. T. Matin [et al.] // Қарағанды университетінің хабаршысы. Математика сериясы. - 2023. - № 4 (112). - P. 21-29. - Bibliogr.: p. 26-27 ISSN 2518-7929.
UDC:
517.518.45
Subject headings
- Fourier series
Annotation
In this paper, the issue of the absolute convergence for multiple series composed of the Fourier-Haar coefficients of functions of several variables of bounded p-variation was studied
Keywords
Fourier-Haar series, coefficients of multiple Fourier-Haar series, ряды Фурье-Хаара, Фурье-Хаар қатары, variational modulus of continuity
Kazakhstan
0/0 Free
periodical press (Magazines)
APAKOV YU. P.
Apakov, Yu. P. On a boundary problem for the fourth order equation with the third derivative with respect to time [Text] / Yu. P. Apakov, D. M. Meliquzieva // Қарағанды университетінің хабаршысы. Математика сериясы. - 2023. - № 4(112). - P. 30-40. - Bibliogr.: p. 36-37 ISSN 2518-7929.
UDC:
517.954
Subject headings
- Boundary value problems
Annotation
In this paper, a boundary value problem in a rectangular domain for a fourth-order homogeneous partial differential equation containing the third derivative with respect to time was considered
Keywords
Initial boundary problem, Fourier method, uniqueness, existence, eigenvalue, eigenfunction, functional series, Фурье әдісі, бастапқы-шеттік есеп, метод Фурье, начально-краевая задача
Kazakhstan
0/0 Free
periodical press (Magazines)
PARVATHY C. R.
Parvathy, C. R. A study on new classes of binary soft sets in topological rough approximation space [Text] / C. R. Parvathy, A. Sofia // Қарағанды университетінің хабаршысы. Математика сериясы. - 2023. - № 4 (112). - P. 79-94. - Bibliogr.: p. 92-93 ISSN 2518-7929.
UDC:
515.122
Subject headings
- Topological spaces
Annotation
Approximation operators are defined and the characteristics of the proposed sets are studied with examples
Keywords
Soft set, simply open, approximation space, rough set, топологиялық кеңістік, аппроксимационное пространство, topological space, жұмсақ жиын, мягкое множество
Kazakhstan
0/0 Free
periodical press (Magazines)
BITIMKHAN S.
Bitimkhan, S. Best approximation by «angle» and the absolute Cesaro summability of double Fourier series [Text] / S. Bitimkhan, O. Mekesh // Қарағанды университетінің хабаршысы. Математика сериясы. - 2023. - № 4 (112). - P. 56-65. - Bibliogr.: p. 64-65 ISSN 2518-7929.
UDC:
517.51
Subject headings
- Functions of real variables. Valid functions
Annotation
This article is devoted to the topic of absolute summation of series or Cesaro summation
Keywords
trigonometric series, Fourier series, Lebesgue space, best approximation by «angle», absolute summability of the series, Фурье қатары, Лебег кеңістігі, ряд Фурье, пространство Лебега
Kazakhstan
0/0 Free
periodical press (Magazines)
BALKIZOV ZH. A.
Balkizov, Zh. A. Boundary value problems with displacement for one mixed hyperbolic equation of the second order [Text] / Zh. A. Balkizov // Қарағанды университетінің хабаршысы. Математика сериясы. - 2023. - № 4 (112). - P. 41-55. - Bibliogr.: p. 49-51 ISSN 2518-7929
.
UDC:
517.956.32
Subject headings
- Linear hyperbolic equations
Annotation
The paper studies two nonlocal problems with a displacement for the conjugation of two equations of secondorder hyperbolic type, with a wave equation in one part of the domain and a degenerate hyperbolic equation of the first kind in the other part
Keywords
wave equation, degenerate hyperbolic equation of the first kind, Volterra integral equation, Fredholm integral equation, Трикоми әдісі, интегральное уравнение Вольтерра, интегральное уравнение Фредгольма, метод Трикоми, Tricomi method, method of integral equations, methods of fractional calculus theory, Вольтерра интегралдық тендеуі, Фредгольм интегралдық тендеуі
Kazakhstan
0/0 Free
periodical press (Magazines)
KHOMPYSH KH.
Khompysh, Kh. Kelvin-Voigt equations with memory: existence, uniqueness and regularity of solutions [Text] / Kh. Khompysh, N. K. Nugymanova // Қарағанды университетінің хабаршысы. Математика сериясы. - 2023. - № 4 (112). - P. 66-78. - Bibliogr.: p. 74-76 ISSN 2518-7929.
UDC:
517.9
Subject headings
- Differential equations. Integral equations
Annotation
In this paper, initial-boundary value problems for the system of 2D-3D nonlinear Kelvin-Voigt equations with memory, which describes a motion of an incompressible homogeneous non-Newtonian fluids with viscoelastic and relaxation properties were studied
Keywords
Kelvin-Voigt system, slip and stick boundary conditions, strong solutions, global existence and uniqueness, smoothness, Кельвин-Фойгт теңдеулері, уравнкния Кельвина-Фойгта
Kazakhstan
0/0 Free
periodical press (Magazines)
JANTASSOVA A. D.
Jantassova , A. D. On the issue of the "ecological corridor" concept [Text] / A. D. Jantassova // Bulletin of the Karaganda University. Law series. - 2023. - № 2 (110). - P. 68-73. - Bibliogr.: p. 72-73 ISSN 2518-7945.
UDC:
349.6
Subject headings
- Legal problems of environmental protection
Annotation
The following scientific paper explores the issue of defining the concept of ecological corridor as a means of protecting Special Protected Natural Areas (SPNA) and objects of the State Nature Reserve Fund (SNRF)
Keywords
reserve core , landscape ecology, objects of the State Nature Reserve Fund , special protected natural areas , ecological network , ecological corridor , natural complexes , ecological code of the Republic of Kazakhstan
Kazakhstan
0/0 Free
periodical press (Magazines)
AKHMETOVA N. S.
Akhmetova , N. S. Improving the lawmaking activities of executive authorities [Text] / N. S. Akhmetova , A. I. Birmanova // Bulletin of the Karaganda University. Law series. - 2023. - № 4 (112). - P. 38-43. - Bibliogr.: p. 42-43 ISSN 2518-7945.
UDC:
342.6
Subject headings
- Executive branch
Annotation
The article examines the features of subordinate lawmaking, which are due to the multiplicity of the system of executive authorities
Keywords
lawmaking, normative legal act , lawmaking principles , lawmaking mechanism , legal monitoring , lawmaking relations , regulatory impact analysis , lawmaking subjects
Kazakhstan
0/0 Free
TEMIRKHANOVA A. M.
CRITERIA FOR THE BOUNDEDNESS OF A CERTAIN CLASS OF MATRIX OPERATORS FROM LPV INTO LQU
periodical press (Magazines)
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ABDIMANAPOVA P. B.
WELL-POSEDNESS CRITERIA FOR ONE FAMILY OF BOUNDARY VALUE PROBLEMS
periodical press (Magazines)
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AKHAZHANOV T. B.
COEFFICIENTS OF MULTIPLE FOURIER-HAAR SERIES AND VARIATIONAL MODULUS OF CONTINUITY
periodical press (Magazines)
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APAKOV YU. P.
ON A BOUNDARY PROBLEM FOR THE FOURTH ORDER EQUATION WITH THE THIRD DERIVATIVE WITH RESPECT TO TIME
periodical press (Magazines)
0/0 Free
PARVATHY C. R.
A STUDY ON NEW CLASSES OF BINARY SOFT SETS IN TOPOLOGICAL ROUGH APPROXIMATION SPACE
periodical press (Magazines)
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BITIMKHAN S.
BEST APPROXIMATION BY «ANGLE» AND THE ABSOLUTE CESARO SUMMABILITY OF DOUBLE FOURIER SERIES
periodical press (Magazines)
0/0 Free
BALKIZOV ZH. A.
BOUNDARY VALUE PROBLEMS WITH DISPLACEMENT FOR ONE MIXED HYPERBOLIC EQUATION OF THE SECOND ORDER
periodical press (Magazines)
0/0 Free
KHOMPYSH KH.
KELVIN-VOIGT EQUATIONS WITH MEMORY: EXISTENCE, UNIQUENESS AND REGULARITY OF SOLUTIONS
periodical press (Magazines)
0/0 Free
periodical press (Magazines)
0/0 Free
periodical press (Magazines)
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