Электронный каталог
Жанр:Прикладные науки. Общие вопросы. Техника (technics_IT)
Язык издания:Английский
Вид издания:периодические издания(Журналы)
Результат поиска:
121-130 из 153
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периодические издания(Журналы)
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.
УДК:
515.122
Предметная рубрика
- Topological spaces
Аннотация
Approximation operators are defined and the characteristics of the proposed sets are studied with examples
Ключевые слова
Soft set, rough set, simply open, approximation space, topological space, жұмсақ жиын, топологиялық кеңістік, мягкое множество, аппроксимационное пространство
Казахстаника
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периодические издания(Журналы)
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.
УДК:
517.51
Предметная рубрика
- Functions of real variables. Valid functions
Аннотация
This article is devoted to the topic of absolute summation of series or Cesaro summation
Ключевые слова
trigonometric series, Fourier series, Lebesgue space, best approximation by «angle», absolute summability of the series, Фурье қатары, Лебег кеңістігі, ряд Фурье, пространство Лебега
Казахстаника
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периодические издания(Журналы)
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
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УДК:
517.956.32
Предметная рубрика
- Linear hyperbolic equations
Аннотация
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
Ключевые слова
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
Казахстаника
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периодические издания(Журналы)
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.
УДК:
517.9
Предметная рубрика
- Differential equations. Integral equations
Аннотация
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
Ключевые слова
Kelvin-Voigt system, slip and stick boundary conditions, strong solutions, global existence and uniqueness, smoothness, Кельвин-Фойгт теңдеулері, уравнкния Кельвина-Фойгта
Казахстаника
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периодические издания(Журналы)
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.
УДК:
517.588
Предметная рубрика
- Hypergeometric series and functions
Аннотация
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
Ключевые слова
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
Казахстаника
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периодические издания(Журналы)
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.
УДК:
517.9
Предметная рубрика
- Differential equations. Integral equations
Аннотация
The problem of constructing equivalent equations with a given structure of forces by the given system of stochastic equations is considered
Ключевые слова
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
Казахстаника
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периодические издания(Журналы)
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.
УДК:
510.6
Предметная рубрика
- Mathematical logic
Аннотация
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)
Ключевые слова
Jonsson theory, semantic model, perfectness, cosemanticness, S-act, Jonsson spectrum, syntactic and semantic similarities, йонсондық теория, йонсоновская теория, S-полигон
Казахстаника
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периодические издания(Журналы)
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.
УДК:
512
Предметная рубрика
- Algebra
Аннотация
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
Ключевые слова
fuzzy subset, rough set, Cayley graph, fuzzy Cayley graph, lower and upper approximations, Кейли графы, анық емес жиын, граф Кэли, нечеткое подмножество
Казахстаника
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периодические издания(Журналы)
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.
УДК:
539
Предметная рубрика
- Stroyeniye materii Structure of matter
Аннотация
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
Ключевые слова
circular plates, anisotropy, axisymmetry, transverse isotropy, finite element method
Казахстаника
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периодические издания(Журналы)
TAZHIEVA T. CH.
Tazhieva, T. Ch. Basis of the automated system of control and accounting of the level of water resources with software (for example Kyzylorda waterworks) [Text] / T. Ch. Tazhieva, O. K. Karlykhanov // М.Х. Дулати атындағы ТарМУ хабаршысы Табиғатты пайдалану және антропосфера мәселелері. - 2013. - № 3. - 175-180 р.. ISSN 2307-1079.
УДК:
005.591.6:627.8.034.43
Предметная рубрика
- Automated water level monitoring system
Аннотация
The article presents the results of research on automation of the water level monitoring and metering system at hydroelectric power plants with software
Ключевые слова
waterworks with software, automation of the control system, Kyzylorda waterworks, water resources level, information system, waterworks, water level accounting, automated system
Казахстаника
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PARVATHY C. R.
A STUDY ON NEW CLASSES OF BINARY SOFT SETS IN TOPOLOGICAL ROUGH APPROXIMATION SPACE
периодические издания(Журналы)
0/0 Свободно
BITIMKHAN S.
BEST APPROXIMATION BY «ANGLE» AND THE ABSOLUTE CESARO SUMMABILITY OF DOUBLE FOURIER SERIES
периодические издания(Журналы)
0/0 Свободно
BALKIZOV ZH. A.
BOUNDARY VALUE PROBLEMS WITH DISPLACEMENT FOR ONE MIXED HYPERBOLIC EQUATION OF THE SECOND ORDER
периодические издания(Журналы)
0/0 Свободно
KHOMPYSH KH.
KELVIN-VOIGT EQUATIONS WITH MEMORY: EXISTENCE, UNIQUENESS AND REGULARITY OF SOLUTIONS
периодические издания(Журналы)
0/0 Свободно
MOHD IDRIS QURESHI
IMPLEMENTATION OF SUMMATION THEOREMS OF ANDREWS AND GESSEL-STANTON
периодические издания(Журналы)
0/0 Свободно
TLEUBERGENOV M. I.
REPRESENTING A SECOND-ORDER ITO EQUATION AS AN EQUATION WITH A GIVEN FORCE STRUCTURE
периодические издания(Журналы)
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периодические издания(Журналы)
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периодические издания(Журналы)
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периодические издания(Журналы)
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TAZHIEVA T. CH.
BASIS OF THE AUTOMATED SYSTEM OF CONTROL AND ACCOUNTING OF THE LEVEL OF WATER RESOURCES WITH SOFTWARE (FOR EXAMPLE KYZYLORDA WATERWORKS)
периодические издания(Журналы)
0/0 Свободно