Electronic catalog
Genre:Прикладные науки. Общие вопросы. Техника (technics_IT)
language:English
publication type:periodical press (Magazines)
Search result:
91-100 of 166
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, rough set, simply open, approximation space, topological space, жұмсақ жиын, топологиялық кеңістік, мягкое множество, аппроксимационное пространство
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, Tricomi method, method of integral equations, methods of fractional calculus theory, Вольтерра интегралдық тендеуі, Фредгольм интегралдық тендеуі, Трикоми әдісі, интегральное уравнение Вольтерра, интегральное уравнение Фредгольма, метод Трикоми
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)
MOHD IDRIS QURESHI
Mohd Idris Qureshi, Implementation of summation theorems of Andrews and Gessel-Stanton [Text] / Mohd Idris Qureshi Tafaz Ul Rahman Shah // Қарағанды университетінің хабаршысы. Математика сериясы. - 2023. - № 4 (112). - P. 95-104. - Bibliogr.: p. 102-103 ISSN 2518-7929.
UDC:
517.588
Subject headings
- Hypergeometric series and functions
Annotation
In this paper, we introduce two general double-series identities involving bounded sequences of arbitrary complex numbers employing the finite summation theorems of Gessel-Stanton and Andrews for terminating 3F2 hypergeometric series with arguments 3/4 and 4/3, respectively
Keywords
generalized hypergeometric function, Srivastava-Daoust double hypergeometric function, reduction formulas, mathematica program, гипергеометриялық функция, Шривастава-Даусттың гипергеометриялық функциясы, гипергеометрическая функция, двойная гипергеометрическая функция Шриваставы-Дауста
Kazakhstan
0/0 Free
periodical press (Magazines)
TLEUBERGENOV M. I.
Tleubergenov, M. I. Representing a second-order Ito equation as an equation with a given force structure [Text] / M. I. Tleubergenov, G. K. Vassilina , A. A. Abdrakhmanov // Қарағанды университетінің хабаршысы. Математика сериясы. - 2023. - № 4 (112). - P. 119-129. - Bibliogr.: p. 127-129 ISSN 2518-7929.
UDC:
517.9
Subject headings
- Differential equations. Integral equations
Annotation
The problem of constructing equivalent equations with a given structure of forces by the given system of stochastic equations is considered
Keywords
Stochastic differential equation, stochastic Lagrange equation, stochastic equations with nonpotential forces, equivalence almost surely, стохастикалық дифференциалдфқ теңдеу, стохастикалық Лагранж теңдеуі, стохастическое дифференциальное уравнение, стохастическое уравнение Лагранжа
Kazakhstan
0/0 Free
periodical press (Magazines)
YESHKEYEV A. R.
Yeshkeyev, A. R. Similarities of Jonsson spectra’s classes [Text] / A. R. Yeshkeyev, O. I. Ulbrikht , G. A. Urken // Қарағанды университетінің хабаршысы. Математика сериясы. - 2023. - № 4 (112). - P. 130-143. - Bibliogr.: p. 138-140 ISSN 2518-7929.
UDC:
510.6
Subject headings
- Mathematical logic
Annotation
The main result of this article is the fact that any perfect Jonson theory which are complete for existential sentences, is syntactically similar to some polygon theory (S-polygon, where S is a monoid)
Keywords
Jonsson theory, semantic model, perfectness, cosemanticness, S-act, Jonsson spectrum, syntactic and semantic similarities, йонсондық теория, йонсоновская теория, S-полигон
Kazakhstan
0/0 Free
periodical press (Magazines)
SHAHZAMANIAN M. H.
Shahzamanian, M. H. Roughness in Fuzzy Cayley Graphs [Text] / M. H. Shahzamanian, B. Davvaz // Қарағанды университетінің хабаршысы. Математика сериясы. - 2023. - № 4 (112). - P. 105-118. - Bibliogr.: p. 117 ISSN 2518-7929.
UDC:
512
Subject headings
- Algebra
Annotation
In this paper a definition for fuzzy Cayley subsets is put forward as well as fuzzy Cayley graphs of fuzzy subsets on groups inspired from the definition of Cayley graphs
Keywords
fuzzy subset, rough set, Cayley graph, fuzzy Cayley graph, lower and upper approximations, Кейли графы, анық емес жиын, граф Кэли, нечеткое подмножество
Kazakhstan
0/0 Free
periodical press (Magazines)
KALIAKIN V.
Kaliakin, V. Finite Element Investigation of Anisotropic Circular Plates [Text] / V. Kaliakin // Bulletin of L.N. Gumilyov Eurasian National University. Technical sciences and technology series. - 2023. - № 1 (142). - Р. 7-20. - Bibliogr.: p. 20 ISSN 2616-7263.
UDC:
539
Subject headings
- Stroyeniye materii Structure of matter
Annotation
The mathematical modeling and finite element analysis of solid circular plates, analyzed using continuum finite elements under conditions of axisymmetry, is investigated in this paper
Keywords
circular plates, anisotropy, axisymmetry, transverse isotropy, finite element method
Kazakhstan
0/0 Free
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)
0/0 Free
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
MOHD IDRIS QURESHI
IMPLEMENTATION OF SUMMATION THEOREMS OF ANDREWS AND GESSEL-STANTON
periodical press (Magazines)
0/0 Free
TLEUBERGENOV M. I.
REPRESENTING A SECOND-ORDER ITO EQUATION AS AN EQUATION WITH A GIVEN FORCE STRUCTURE
periodical press (Magazines)
0/0 Free
periodical press (Magazines)
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periodical press (Magazines)
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periodical press (Magazines)
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