您要查找的是不是：
- Bq型方程Bq-type equation
- 橢園型方程elliptic equation
- Abel型方程Abel ODE
- Dufllng型方程dutffing equation
- Duffing型方程Duffing equation
- 超拋物型方程ultraparabolic equation
- 非退化型方程nonsinglar equation
- 拋物型方程紐parabolic systems
- Dufling型方程Duffing equation
- 3維拋物型方程three-dimension parabolic equation
- Riccati型方程Riccati equation
- 三維拋物型方程Three-dimension parabolic equation
- 退縮橢圓型方程degenerate Elliptical equation
- 二維拋物型方程equation of two-dimensional parabolic type
- Liénard型方程Liénard equations
- 脈沖拋物型方程impulse parabolic equation
- 一階雙曲型方程1-order hyperbolic equation
- 中立拋物型方程neutral parabolic equation
- 一維雙曲型方程one-dimension hyperbolic equation
- 一雛拋物型方程one-dimensional parabolic equation
