Zobrazeno 1 - 10
of 24
pro vyhledávání: '"V. L. Vaskevich"'
Autor:
I. P. Oksogoeva, V. L. Vaskevich, I. V. Schwab, A. G. Maksimova, G. G. Lazareva, N. E. Ivashin, A. V. Burdakov, V.A. Popov, Aleksey Arakcheev
Publikováno v:
Journal of Applied and Industrial Mathematics. 15:292-301
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::861bfdaf923c72b8e0fc83137d761922
https://doi.org/10.1134/s1990478921020101
https://doi.org/10.1134/s1990478921020101
Autor:
V. L. Vaskevich
Publikováno v:
Complex Variables and Elliptic Equations. 66:1213-1224
The paper aims to estimate the error of a cubature formula acting on an arbitrary function from the Sobolev space on a multidimensional cube. The norm of the error in the dual space of the Sobolev ...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e5b0c51f3068a217cf4483f86939f773
https://doi.org/10.1080/17476933.2020.1816991
https://doi.org/10.1080/17476933.2020.1816991
Autor:
V. L. Vaskevich
Publikováno v:
Computational Mathematics and Mathematical Physics. 60:590-600
A functional equation is considered in which a linear combination of a two-variable function and its time derivative is set equal to the double integral of a quadratic expression of the same function with respect to space variables. For the resulting
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f26d3cfbfaee8667f08040098846d528
https://doi.org/10.1134/s0965542520040181
https://doi.org/10.1134/s0965542520040181
Autor:
V. L. Vaskevich
Publikováno v:
Siberian Advances in Mathematics. 28:74-77
In the case of periodic conditions, we find explicit upper estimates in terms of power functions for the multiplicities r n (p) of eigenvalues of the Laplace operator.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f7e68008cf45f45eedc01566cfa90a7f
https://doi.org/10.3103/s1055134418010078
https://doi.org/10.3103/s1055134418010078
Autor:
V. L. Vaskevich
Publikováno v:
Siberian Mathematical Journal. 58:408-418
We study sequences of cubature formulas on the unit sphere in a multidimensional Euclidean space. The grids for the cubature formulas under consideration embed in each other consecutively, forming in the limit a dense subset on the initial sphere. As
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::da3cfb067f13268a63ad070fcc093f0d
https://doi.org/10.1134/s0037446617030053
https://doi.org/10.1134/s0037446617030053
Autor:
V. L. Vaskevich
Publikováno v:
Siberian Advances in Mathematics. 25:297-304
We establish convergence in a norm of cubature formulas of high trigonometric precision on multidimensional periodic Sobolev spaces including spaces of fractional smoothness. The main result is obtained under the conventional conditions on smoothness
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2c464b1ba8f2a15603ebcd2c82e4b376
https://doi.org/10.3103/s1055134415040069
https://doi.org/10.3103/s1055134415040069
Autor:
V I Mali, V N Belykh, S P Kiselev, Konstantin Vladimirovich Brushlinskii, V S Ryaben'kii, Vladislav Vasilievich Pukhnachov, A N Kraiko, E I Romenskii, A. G. Kulikovskii, V L Vaskevich
Publikováno v:
Russian Mathematical Surveys. 70:561-590
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2d8e8479bf1870838286475b1c280161
https://doi.org/10.1070/rm2015v070n03abeh004955
https://doi.org/10.1070/rm2015v070n03abeh004955
Autor:
V. L. Vaskevich
Publikováno v:
Siberian Mathematical Journal. 55:792-806
We give an upper bound for the deviation of the norm of a perturbed error from the norm of the original error of a cubature formula in a multidimensional bounded domain. The deviation arises as a result of the joint influence on the computations of s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::97ab422026c9884b16f9d73f7d9c7926
https://doi.org/10.1134/s0037446614050024
https://doi.org/10.1134/s0037446614050024
Autor:
I. V. Shvab, V. L. Vaskevich
Publikováno v:
Journal of Physics: Conference Series. 1391:012075
The equations considered in this article have the form in which the time derivative of the unknown function is expressed as a double integral over the space variables of a weighted quadratic expression of the sought function. The domain of integratio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7c5d10afe294da55342cfed0d5b7d7e6
https://doi.org/10.1088/1742-6596/1391/1/012075
https://doi.org/10.1088/1742-6596/1391/1/012075
Autor:
V. L. Vaskevich
Publikováno v:
Siberian Mathematical Journal. 53:996-1010
We give upper bounds for the deviation of the norm of a perturbed error functional from the norm of the original error of a higher-dimensional spherical cubature formula. The deviation arises as a result of the combined influence on the computation o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4ca5d9c1a4478310b26471f97ca455e1
https://doi.org/10.1134/s0037446612060043
https://doi.org/10.1134/s0037446612060043