数学季刊 ›› 2008, Vol. 23 ›› Issue (1): 127-134.
摘要: In this paper,a new higher order Wilson element is presented,and the conver- gence is proved.Then the interpolation postprocessing technique is used to obtain the global superconvergence and posterior error estimate of higher accuracy of this new element for the Sobolev type equations.
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