Error bounds of certain Gaussian quadrature formulae
✍ Scribed by Miodrag M. Spalević; Miroslav S. Pranić
- Publisher
- Elsevier Science
- Year
- 2010
- Tongue
- English
- Weight
- 322 KB
- Volume
- 234
- Category
- Article
- ISSN
- 0377-0427
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✦ Synopsis
We study the kernel of the remainder term of Gauss quadrature rules for analytic functions with respect to one class of Bernstein-Szegö weight functions. The location on the elliptic contours where the modulus of the kernel attains its maximum value is investigated. This leads to effective error bounds of the corresponding Gauss quadratures.
📜 SIMILAR VOLUMES
Convergence of a general Gaussian quadrature formula is shown and its rate of convergence is also given.
For analytic functions the remainder term of Gaussian quadrature formula and its Kronrod extension can be represented as a contour integral with a complex kernel. We study these kernels on elliptic contours with foci at the points ±1 and the sum of semi-axes > 1 for the Chebyshev weight functions of