【摘要】 文章给出了第一类重调和方程Ciarlet-Raviart混合变分形式下的梯度恢复型后验误差估计;通过引入加权Cle′ment插值,改进了ZZ梯度恢复法,给出并从理论上证明了后验误差估计的上、下界。更多还原

【Abstract】 This paper proposes a posteriori error estimation of gradient recovery-type for the Ciarlet-Raviart formulation of the first biharmonic problem.By the appropriate modification of Weighted Cle′ment-type interpolation,the paper gives the proper scaling of the gradient recovery leading to both lower and upper estimation.更多还原