色散方程u_t=au_(xxx)的一个新的绝对稳定的半显式格式

A New Semi-explicit Difference Scheme with Absolute Stability for the Dispersive Equation u tt =au xxx

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．格式精度高，稳定性好，可以显式计算，不管ａ的符号如何，均可用这一格式进行计算．

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.