Convergence of consistent and inconsistent finite difference schemes and an acceleration technique
Convergence of consistent and inconsistent finite difference schemes and an acceleration technique
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一致和不一致有限差分格式的收敛和加速技术
DOI:
10.1016/s0377-0427(01)00522-2
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发表时间:
2002
影响因子:
2.4
通讯作者:
Tetsuro Yamamoto
中科院分区:
文献类型:
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作者:
Tetsuro Yamamoto
This paper states and generalizes in part some recent results on finite difference methods for Dirichlet problems in a bounded domain Ω which the author has obtained by himself or with coworkers. After stating a superconvergence property of finite difference solution for the case where the exact solution u belongs to C4( Ω ̄ ) , it is remarked that such a property does not hold in general if u∉C4( Ω ̄ ) . Next, a convergence theorem is given for inconsistent schemes under some assumptions. Furthermore, it is shown that the accuracy of the approximate solution can be improved by a coordinate transformation. Numerical examples are also given.
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影响因子:
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