摘要
用待定系数法构违了六阶差分格式,比已有文献的四阶差分格式提高了精度。格式稳定性的证明方法也是新的。
The difference scheme of sixth order pricision is constructed by undetermined coefficient method. Compared with the difference scheme of fourth order in previous reference, its precision is more precise.
关键词
差分格式
稳定性
抛物型方程
Difference schemes
Stability of difference schemes
Parabolic equations
Initial-value problems
