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摘要
A class of a posteriori estimators is studied for the error in the maximum norm of the gradient on single elements when the finite element method is used to approximate solutions of second order elliptic problems on a nonconvex polygonal domain. The results are extensions of previous results for smooth domains [W. Hoffmann et al., Math. Comp., 70 (2001), pp. 897-909; A. H. Schatz and L. B. Wahlbin, Math. Comp., 73 (2004), pp. 517-523].
- 出版日期2012
