A new representation of generalized averaged Gauss quadrature rules
A new representation of generalized averaged Gauss quadrature rules
复制标题
广义平均高斯求积规则的新表示
DOI:
10.1016/j.apnum.2020.11.016
复制
发表时间:
2021
影响因子:
2.8
通讯作者:
Spalević, Miodrag M.
中科院分区:
文献类型:
--
作者:
Reichel, Lothar;Spalević, Miodrag M.
Gauss quadrature rules associated with a nonnegative measure with support on (part of) the real axis find many applications in Scientific Computing. It is important to be able to estimate the quadrature error when replacing an integral by an ℓ-node Gauss quadrature rule in order to choose a suitable number of nodes. A classical approach to estimate this error is to evaluate the associated (2 ℓ+ 1)-node Gauss–Kronrod rule. However, Gauss–Kronrod rules with 2 ℓ+ 1 real nodes might not exist. The (2 ℓ+ 1)-node generalized averaged Gauss formula associated with the ℓ-node Gauss rule described in Spalević (2007)[16] is guaranteed to exist and provides an attractive alternative to the (2 ℓ+ 1)-node Gauss–Kronrod rule. This paper describes a new representation of generalized averaged Gauss formulas that is cheaper to evaluate than the available representation.
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影响因子:
1.5
作者:
F. Peherstorfer
通讯作者:
F. Peherstorfer
DOI:
--
发表时间:
2016
期刊:
影响因子:
--
作者:
L. Reichel;M. Spalević;Tunan Tang
通讯作者:
Tunan Tang
DOI:
10.1016/s0377-0427(00)00506-9
发表时间:
2001-01
影响因子:
2.4
作者:
D. Laurie
通讯作者:
D. Laurie
DOI:
10.1090/s0025-5718-07-01975-8
发表时间:
2007
期刊:
Math. Comput.
影响因子:
--
作者:
M. Spalević
通讯作者:
M. Spalević
DOI:
--
发表时间:
2016
期刊:
影响因子:
--
作者:
D. Djukić;L. Reichel;M. Spalević;J. Tomanovic
通讯作者:
J. Tomanovic