Title
A posterior error estimator and lower bound of a nonconforming finite element method.
Abstract
In this paper, we present an a posteriori error estimator and the lower bound for a nonconforming finite element approximation, i.e. the extended Crouzeix-Raviart element, of the Laplace eigenvalue problem. Under the guideline of the analysis to the Laplace source problem, we first give out an error indicator and prove it as the global upper and local lower bounds of the approximation error. We also give the lower-bound analysis for this type of nonconforming element on the adaptive meshes. Some numerical experiments are presented to verify our theoretical results.
Year
DOI
Venue
2014
10.1016/j.cam.2013.09.030
J. Computational Applied Mathematics
Keywords
Field
DocType
nonconforming finite element method,extended crouzeix-raviart element,lower-bound analysis,laplace source problem,laplace eigenvalue problem,posteriori error estimator,posterior error estimator,nonconforming finite element approximation,local lower bound,approximation error,error indicator,nonconforming element,lower bound
Mathematical optimization,Polygon mesh,Laplace transform,Upper and lower bounds,Mathematical analysis,A priori and a posteriori,Finite element method,Eigenvalues and eigenvectors,Mathematics,Approximation error,Estimator
Journal
Volume
ISSN
Citations 
265
0377-0427
1
PageRank 
References 
Authors
0.37
7
3
Name
Order
Citations
PageRank
Qun Lin17814.23
Fusheng Luo210.37
Hehu Xie310214.06