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An anisotropic rectangular nonconforming finite element method for solving the Sobolev equations is discussed under semi-discrete and full discrete schemes. The corresponding optimal convergence error estimates and superclose property are derived, which are the same as the traditional conforming finite elements. Furthermore, the global superconvergence is obtained using a post-processing technique. The numerical results show the validity of the theoretical analysis. 相似文献
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研究了带弱奇异核的抛物型积分微分方程的非协调有限元方法,在不需要Ritz-Volterra投影的情况下,在半离散和全离散的格式下分别得到了与协调有限元方法相同的误差估计. 相似文献
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