Using the analytic method of the anisotropic element, error estimate for the second order problem is obtained without the limitation of regularity conditions.

利用各向异性单元分析方法得到了二阶问题的误差估计，从而避开了正则性条件的限制。

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In this paper, a new method of error estimate for the generalized difference method of second order elliptic problems on triangle grids is given.

文章给出了三角网格上二阶椭圆问题广义差分方法的一种新的误差估计方法。

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Given the stability, error estimate and numerical experiments for the nonlinear equation of second order backward difference(4)Given the weighted of second order convolution quadrature.

给出非线性方程的二阶向后差分格式稳定性、误差估计。 （4）给出二阶卷积积分的权重。

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