本文讨论了Sine—Gordon方程的一类低阶非协调有限元一般逼近格式,直接利用插值技巧和单元的特殊性质导出了相应未知量的最优误差估计.
In this paper general approximation scheme of low order nonconforming finite elements for Sine-Gordon equation is discussed, the optimal order error estimations of the correspond- ing unknown functions are derived based on interpolation technique and special properties of the elements.