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publication type:periodical press (Magazines)
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51-56 of 56
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
periodical press (Magazines)
YESHKEYEV A. R.
Yeshkeyev, A. R. On categoricity questions for universal unars and undirected graphs under semantic Jonsson quasivariety [Text] / A. R. Yeshkeyev, A. R. Yarullina , S. M. Amanbekov // Қарағанды университетінің хабаршысы. Математика сериясы. - 2023. - № 3 (111). - P. 165-180. - Bibliogr.: p. 175-177 ISSN 2518-7929.
UDC:
510.6
Subject headings
- Mathematical logic
Annotation
The article is devoted to the study of semantic Jonsson quasivarieties of universal unars and undirected graphs
Keywords
Jonsson theory, unar, graph, undirected graph, universal theory, Robinson theory, quasivariety, semantic Jonsson quasivariety, Jonsson spectrum, Robinson spectrum, cosemanticness, countable categoricity
Kazakhstan
0/0 Free
periodical press (Magazines)
YESSENBAYEVA G. A.
Yessenbayeva, G. A. On the function approximation by trigonometric polynomials and the properties of families of function classes over harmonic intervals [Text] / G. A. Yessenbayeva, A. N. Yesbayev , N. K. Syzdykova [et al.] // Қарағанды университетінің хабаршысы. Математика сериясы. - 2023. - № 3 (111). - P. 181-190. - Bibliogr.: p. 187-188 ISSN 2518-7929.
UDC:
517.518.8
Subject headings
- Approximation of functions by polynomials and their generalizations
Annotation
The article is devoted to research on approximation theory
Keywords
harmonic interval, spectrum, Dirichlet kernel, trigonometric polynomials, family of function classes, function approximation
Kazakhstan
0/0 Free
periodical press (Magazines)
TLEUKHANOVA N. T.
Tleukhanova, N. T. On the Fourier transform of functions from a Lorentz space L 2,r with a mixed metric [Text] / N. T. Tleukhanova, G. K. Mussabayeva , M. Manarbek // Қарағанды университетінің хабаршысы. Математика сериясы. - 2023. - № 3 (111). - P. 138-151. - Bibliogr.: p. 148-149 ISSN 2518-7929.
UDC:
517.518.45
Subject headings
- Fourier series
Annotation
In the article a two-dimensional analog of the Bochkarev type theorem for the Fourier transform was received
Keywords
Lorentz Space, Hausdorff-Young-Riesz theorem, Bochkarev’s theorem, Cauchy-Bunyakovsky inequality, Helder’s inequality
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)
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 , natural complexes , ecological code of the Republic of Kazakhstan , ecological network , ecological corridor
Kazakhstan
0/0 Free
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
YESHKEYEV A. R.
ON CATEGORICITY QUESTIONS FOR UNIVERSAL UNARS AND UNDIRECTED GRAPHS UNDER SEMANTIC JONSSON QUASIVARIETY
periodical press (Magazines)
0/0 Free
YESSENBAYEVA G. A.
ON THE FUNCTION APPROXIMATION BY TRIGONOMETRIC POLYNOMIALS AND THE PROPERTIES OF FAMILIES OF FUNCTION CLASSES OVER HARMONIC INTERVALS
periodical press (Magazines)
0/0 Free
TLEUKHANOVA N. T.
ON THE FOURIER TRANSFORM OF FUNCTIONS FROM A LORENTZ SPACE L 2,R WITH A MIXED METRIC
periodical press (Magazines)
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
periodical press (Magazines)
0/0 Free