|
Vestnik Yuzhno-Ural'skogo Universiteta. Seriya Matematicheskoe Modelirovanie i Programmirovanie, 2013, Volume 6, Issue 4, Pages 87–100
(Mi vyuru107)
|
|
|
|
This article is cited in 1 scientific paper (total in 1 paper)
Mathematical Modelling
Quadrature Formulas with High Order Approximation
D. A. Silaev Lomonosov Moscow State University, Moscow, Russian Federation
Abstract:
In the article the method of creation the quadrature formulas with high order approximation for a wide class of the areas is given. This method is based on approach of smooth function on the plane by the semilocal smoothing spline or S-spline. Semilocal smoothing splines are initiated by D. A. Silaev. Earlier the splines of the third and fifth degree are considered and applied. This work is devoted to use of S-splines of higher degrees. Steady $S$-splines of a class of $C^0$ (only continuous), consisting of polynoms of high degree of $n$ ($n=9, 10$) makes it possible to receive quadrature formulas of the 10th and 11th orders of approximation. It is supposed that integrand function belongs to $C^p$ class (to $p=10, 11$) in a bigger area, than initial area on which integration is conducted. It is also supposed that the border of area is set parametrically that helps to consider area border with a fine precision. Similar approach is possible for the construction of cubature formulas.
Keywords:
an approximation; a spline; integrals; quadrature formulas; numerical methods.
Received: 06.06.2013
Citation:
D. A. Silaev, “Quadrature Formulas with High Order Approximation”, Vestnik YuUrGU. Ser. Mat. Model. Progr., 6:4 (2013), 87–100
Linking options:
https://www.mathnet.ru/eng/vyuru107 https://www.mathnet.ru/eng/vyuru/v6/i4/p87
|
Statistics & downloads: |
Abstract page: | 218 | Full-text PDF : | 154 | References: | 45 | First page: | 2 |
|