Electronic catalog
language:English
catalogue:Articles
Search result:
1291-1300 of 2279
periodical press (Magazines)
ATTAEV A. KH.
Attaev, A. Kh. On Some Non-local Boundary Value and Internal Boundary Value Problems for the String Oscillation Equation [Text] / A. Kh. Attaev // Қарағанды университетінің хабаршысы. Математика сериясы. - 2023. - № 2 (110). - P. 35-44. - Bibliogr.: p. 41-42 ISSN 2518-7929.
UDC:
517.9
Subject headings
- Differential equations. Integral equations
Annotation
The work is devoted to the problem of setting new boundary and internal boundary value problems for hyperbolic equations
Keywords
Wave equation, general solution, Cauchy problem, Goursat problem, Darboux problem, problem with characteristic shift, problem with uncharacteristic displacement
Kazakhstan
0/0 Free
periodical press (Magazines)
QURESHI M. I.
Qureshi, M. I. A family of definite integrals involving Legendre’s polynomials [Text] / M. I. Qureshi, S. H. Malik , D. Ahmad // Қарағанды университетінің хабаршысы. Математика сериясы. - 2023. - № 2 (110). - P. 116-130. - Bibliogr.: p. 128-129 ISSN 2518-7929.
UDC:
517.586
Subject headings
- Legendre polynomials and functions
Annotation
The main objective of this article is to provide the analytical solutions (not previously found and not available in the literature) of some problems related with definite integrals integrands of which are the products of the derivatives of Legendre’s polynomials of first kind having different order
Keywords
Legendre polynomials, Rodrigues formula, Murphy formula for Legendre polynomial, Leibnitz generalized rule, integrals
Kazakhstan
0/0 Free
periodical press (Magazines)
KOSMAKOVA M. T.
Kosmakova, M. T. A fractionally loaded boundary value problem two-dimensional in the spatial variable [Text] / M. T. Kosmakova, K. A. Izhanova; L. Zh. Kasymova // Қарағанды университетінің хабаршысы. Математика сериясы. - 2023. - № 2 (110). - P. 72-83. - Bibliogr.: p. 82-83 ISSN 2518-7929.
UDC:
517.9
Subject headings
- Differential equations. Integral equations
Annotation
In the paper, the boundary value problem for the loaded heat equation is solved, and the loaded term is represented as the Riemann-Liouville derivative with respect to the time variable
Keywords
loaded boundary value problem, heat equation, isotropy, Volterra integral equation, Laplace transformation
Kazakhstan
0/0 Free
periodical press (Magazines)
TURGUMBAEV M. ZH.
Turgumbaev, M. Zh. On weighted integrability of the sum of series with monotone coefficients with respect to multiplicative systems [Text] / M. Zh. Turgumbaev, Z. R. Suleimenova , D. I. Tungushbaeva // Қарағанды университетінің хабаршысы. Математика сериясы. - 2023. - № 2 (110). - P. 160-168. - Bibliogr.: p. 166-167 ISSN 2518-7929.
UDC:
517.518.4
Subject headings
- Trigonometric series
Annotation
In this paper, the questions about the weighted integrability of the sum of series with respect to multiplicative systems with monotone coefficients have beeb considered
Keywords
multiplicative systems, decomposition, weighted integrability, sum of series, generator sequence, monotone coefficients, Hardy-Littlewood theorem, Lebesgue space
Kazakhstan
0/0 Free
periodical press (Magazines)
YESHKEYEV A. R.
Yeshkeyev, A. R. On Robinson spectrum of the semantic Jonsson quasivariety of unars [Text] / A. R. Yeshkeyev, A. R. Yarullina , S. M. Amanbekov [et al.] // Қарағанды университетінің хабаршысы. Математика сериясы. - 2023. - № 2 (110). - P. 169-178. - Bibliogr.: p. 175-176 ISSN 2518-7929.
UDC:
517.547.56
Subject headings
- Algebraic systems
Annotation
Given article is devoted to the study of semantic Jonsson quasivariety of universal unars of signature containing only unary functional symbol
Keywords
Jonsson theory, unars, universal theory, Robinson theory, quasivariety, semantic Jonsson quasivariety, Jonsson spectrum, Robinson spectrum, equivalence class, cosemanticness
Kazakhstan
0/0 Free
periodical press (Magazines)
KASSYMETOVA M. T.
Kassymetova, M. T. Geometry of strongly minimal hybrids of fragments of theoretical sets [Text] / M. T. Kassymetova, N. M. Mussina // Қарағанды университетінің хабаршысы. Математика сериясы. - 2023. - № 3 (111). - P. 47-58. - Bibliogr.: p. 54-56 ISSN 2518-7929.
UDC:
510.6
Subject headings
- Mathematical logic
Annotation
In this article, strongly minimal geometries of fragment hybrids are considered
Keywords
semantic model, fragment, Robinson theory, Jonsson theory, hybrid of Jonsson theories , Jonsson set, theoretical set, central type, pregeometry, strongly minimal type
Kazakhstan
0/0 Free
periodical press (Magazines)
KATSYV S.
Katsyv, S. Development of the fuzzy sets theory: weak operations and extension principles [Text] / S. Katsyv, N. Kondratenko , V. Kucheruk // Қарағанды университетінің хабаршысы. Математика сериясы. - 2023. - № 3 (111). - P. 69-70. - Bibliogr.: p. 69-70 ISSN 2518-7929.
UDC:
510.644
Subject headings
- Multivalued logics
Annotation
The paper considers the problems that arise when using the theory of fuzzy sets to solve applied problems
Keywords
function of belonging, core of fuzzy set, alfa-weak operation, set of alfa-cut, Cantor set, fuzzy set
Kazakhstan
0/0 Free
periodical press (Magazines)
LUTSAK S. M.
Lutsak, S. M. Some non-standard quasivarieties of lattices [Text] / S. M. Lutsak, A. O. Basheyeva , A. M. Asanbekov // Қарағанды университетінің хабаршысы. Математика сериясы. - 2023. - № 3 (111). - P. 72-80. - Bibliogr.: p. 78-79 ISSN 2518-7929.
UDC:
512.57
Subject headings
- Universal algebras. Free algebras
Annotation
The article explores some non-standard quasi-varieties of grids
Keywords
quasivariety, lattice, topological quasivariety, basis of quasi-identities, profinite algebra, profinite quasivariety
Kazakhstan
0/0 Free
periodical press (Magazines)
DEKHKONOV F. N.
Dekhkonov, F. N. On the time-optimal control problem for a heat equation [Text] / F. N. Dekhkonov // Қарағанды университетінің хабаршысы. Математика сериясы. - 2023. - № 3 (111). - P. 28-38. - Bibliogr.: p. 36-38 ISSN 2518-7929.
UDC:
517.977
Subject headings
- Mathematical theory of management. Optimal management
Annotation
In this paper, the boundary control problem for a heat equation on the interval is considered
Keywords
heat equation, minimal time, admissible control, boundary control problem, initial-boundary value problem
Kazakhstan
0/0 Free
periodical press (Magazines)
KARIMOV E. T.
Karimov, E. T. On a boundary-value problem in a bounded domain for a time-fractional diffusion equation with the Prabhakar fractional derivative [Text] / E. T. Karimov, A. Hasanov // Қарағанды университетінің хабаршысы. Математика сериясы. - 2023. - № 3 (111). - P. 39-46. - Bibliogr.: p. 44-45 ISSN 2518-7929.
UDC:
517.9
Subject headings
- Differential equations. Integral equations
Annotation
The purpose of the article is to study a unique solvability of a boundary-value problem for a time-fractional diffusion equation involving the Prabhakar fractional derivative in a Caputo sense in a bounded domain
Keywords
Time-fractional diffusion equation, regularized Prabhakar fractional derivative, Mittag-Leffler type functions, fractional derivatives, integral equations
Kazakhstan
0/0 Free
ATTAEV A. KH.
ON SOME NON-LOCAL BOUNDARY VALUE AND INTERNAL BOUNDARY VALUE PROBLEMS FOR THE STRING OSCILLATION EQUATION
periodical press (Magazines)
0/0 Free
QURESHI M. I.
A FAMILY OF DEFINITE INTEGRALS INVOLVING LEGENDRE’S POLYNOMIALS
periodical press (Magazines)
0/0 Free
KOSMAKOVA M. T.
A FRACTIONALLY LOADED BOUNDARY VALUE PROBLEM TWO-DIMENSIONAL IN THE SPATIAL VARIABLE
periodical press (Magazines)
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TURGUMBAEV M. ZH.
ON WEIGHTED INTEGRABILITY OF THE SUM OF SERIES WITH MONOTONE COEFFICIENTS WITH RESPECT TO MULTIPLICATIVE SYSTEMS
periodical press (Magazines)
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YESHKEYEV A. R.
ON ROBINSON SPECTRUM OF THE SEMANTIC JONSSON QUASIVARIETY OF UNARS
periodical press (Magazines)
0/0 Free
KASSYMETOVA M. T.
GEOMETRY OF STRONGLY MINIMAL HYBRIDS OF FRAGMENTS OF THEORETICAL SETS
periodical press (Magazines)
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KATSYV S.
DEVELOPMENT OF THE FUZZY SETS THEORY: WEAK OPERATIONS AND EXTENSION PRINCIPLES
periodical press (Magazines)
0/0 Free
periodical press (Magazines)
0/0 Free
periodical press (Magazines)
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KARIMOV E. T.
ON A BOUNDARY-VALUE PROBLEM IN A BOUNDED DOMAIN FOR A TIME-FRACTIONAL DIFFUSION EQUATION WITH THE PRABHAKAR FRACTIONAL DERIVATIVE
periodical press (Magazines)
0/0 Free