incomplete dominance

Especially,let some coefficients of the nodes be 0,two order semi-explicit difference schemes can be deduced.

特殊的,若令某个节点前的系数为0,则得到二阶的半显格式。

In this paper, a new semiexplicit difference scheme with absolute stability for the dispersive equation u t=au xxx  is given, its accuracy is higher, stability is better, it can be calculated in explicit scheme and the calculation is independent of the symbol of a.

本文给出了一个解色散方程ｕｔ＝ａｕｘｘｘ的绝对稳定的半显式格式。