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A UNIFORMLY OPTIMAL-ORDER ESTIMATE FOR BILINEAR FINITE ELEMENT METHOD FOR TRANSIENT ADVECTION-DIFFUSION EQUATIONS

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成果类型:
期刊论文
作者:
Lin, Qun*;Wang, Kaixin;Wang, Hong;Yin, Xiabo
通讯作者:
Lin, Qun
作者机构:
[Lin, Qun] Chinese Acad Sci, Inst Computat Math, Beijing 100190, Peoples R China.
[Wang, Kaixin] Shandong Univ, Sch Math & Syst Sci, Jinan 250100, Shandong, Peoples R China.
[Wang, Hong] Univ S Carolina, Dept Math, Columbia, SC 29208 USA.
[Yin, Xiabo] Cent China Normal Univ, Dept Math, Wuhan 430079, Peoples R China.
[Lin, Qun] Chinese Acad Sci, Inst Computat Math, POB 2719, Beijing 100190, Peoples R China.
通讯机构:
[Lin, Qun] C
Chinese Acad Sci, Inst Computat Math, POB 2719, Beijing 100190, Peoples R China.
语种:
英文
关键词:
Convergence analysis;Galerkin methods;Integral expansion;Integral identity;Uniform error estimates
期刊:
INTERNATIONAL JOURNAL OF NUMERICAL ANALYSIS AND MODELING
ISSN:
1705-5105
年:
2012
卷:
9
期:
1
页码:
73-85
基金类别:
National Science FoundationNational Science Foundation (NSF) [EAR-0934747]
机构署名:
本校为其他机构
院系归属:
数学与统计学学院
摘要:
We prove an optimal-order error estimate in a weighted energy norm for bilinear Galerkin finite element method for two-dimensional time-dependent advection-diffusion equations by the means of integral identities or expansions, in the sense that the generic constants in the estimates depend only on certain Sobolev norms of the true solution but not on the scaling parameter ε. These estimates, combined with a priori stability estimates of the governing partial differential equations, yield an ε-uniform estimate of the bilinear Galerkin finite e...

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