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总览 评价 陈仲英 1, , 隆广庆 1,* , Gnaneshwar Nelakanti 2, ( 1、 中山大学科学计算与计算机应用系; 2、 Department of Mathematics, Guangxi Normal College; ) 摘要: 本文考虑光滑核积分算子的特征值得逼近。文中给出了全离散迭代Galerkin和
陈仲英1,, 隆广庆1,*, Gnaneshwar Nelakanti2,
(
1、中山大学科学计算与计算机应用系; 2、Department of Mathematics, Guangxi Normal College; )
摘要:
本文考虑光滑核积分算子的特征值得逼近。
文中给出了全离散迭代Galerkin和迭代配置法的
渐进展开以及特征值逼近的渐进展开,
并应用Richardson外推法获得更高的超收敛阶。
关键词:
特征值,外推法,超收敛
Chen Zhongying 1,, Long Guangqing 1,*, Gnaneshwar Nelakanti2,
(
1、Department of Scientific Computing and Computer Applications of Zhongshan University; 2、Department of Mathematics, Guangxi Normal College; )
Abstract:
In this paper, the eigenvalue approximation of a
compact integral operator with a smooth kernel is discussed. We
propose asymptotic error expansions of the iterated discrete
Galerkin and iterated discrete collocation methods, and asymptotic
error expansion of approximate eigenvalues. We then apply
Richardson extrapolation to obtain higher order super-convergence
of eigenvalue approximations. Numerical examples are presented to
illustrate the theoretical estimate.
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