DSW 方程 DSW 方程DrinfeldSolokovWilson equation是一组非线性偏微分方程  u  t    v   v  x   displaystyle frac partial upartial tvfrac partial vpartial x  v  t      v  x    u  x  v   u   v  x displaystyle frac partial vpartial tfrac partial vpartial xfrac partial upartial xvufrac partial vpartial x