问题

Questions in category: 偏微分方程 (Partial Differential Equations).

Sine–Gordon 方程

Posted by haifeng on 2011-05-27 17:43:55 last update 0000-00-00 00:00:00 | Answers (0) | 收藏

Sine–Gordon equation
\[ u_{xx}-u_{tt}-\sin u=0 \]