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This article is cited in 6 scientific papers (total in 6 papers)
Quadrature formulae for classes of functions of low smoothness
E. D. Nursultanova, N. T. Tleukhanovab a Kazakhstan Branch of Lomonosov Moscow State University
b L. N. Gumilev Eurasian National University
Abstract:
For Sobolev and Korobov spaces of functions of several variables
a quadrature formula with explicitly defined coefficients and nodes is
constructed. This formula is precise for trigonometric polynomials with
harmonics from the corresponding step hyperbolic cross. The error of the quadrature formula in the classes $W^\alpha_p[0,1]^n$, $E^\alpha[0,1]^n$
is $o((\ln M)^\beta/M^\alpha)$, where $M$ is the number of nodes and $\beta$
is a parameter depending on the class.
The problem of the approximate calculation of multiple integrals for functions in $W^\alpha_p[0,1]^n$ is considered in the case when this class does not lie in the space of continuous functions, that is, for $\alpha\leqslant 1/p$.
Received: 11.02.2002 and 12.05.2003
Citation:
E. D. Nursultanov, N. T. Tleukhanova, “Quadrature formulae for classes of functions of low smoothness”, Sb. Math., 194:10 (2003), 1559–1584
Linking options:
https://www.mathnet.ru/eng/sm777https://doi.org/10.1070/SM2003v194n10ABEH000777 https://www.mathnet.ru/eng/sm/v194/i10/p133
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Abstract page: | 815 | Russian version PDF: | 325 | English version PDF: | 28 | References: | 60 | First page: | 1 |
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