讨论了广义神经传播方程的Hermite型矩形元逼近.通过积分恒等式和插值后处理技术,得到了其半离散格式下有限元解的超逼近性质和超收敛结果.同时,利用更高阶的积分误差渐进展开式进行外推,导出了具有四阶精度的误差估计,比传统的有限元分析高一阶.
The approximation of a Hermite-type rectangular finite element for the generalized nerve conductive equations is discussed.Through the integral identity and interpolated postprocessing techniques,the superclose property and the superconvergence result of the finite element solution are obtained under semi-discrete scheme.At the same time,based on the profounder asymptotic expansion of integral error and extrapolation method,the fourth order error estimate is derived,which is one order higher than that of traditional finite element analysis.