您要查找的是不是：
- Bq型方程 Bq-type equation
- 椭园型方程 elliptic equation
- Abel型方程 Abel ODE
- Dufllng型方程 dutffing equation
- Duffing型方程 Duffing equation
- 超抛物型方程 ultraparabolic equation
- 非退化型方程 nonsinglar equation
- 抛物型方程纽 parabolic systems
- Dufling型方程 Duffing equation
- 3维抛物型方程 three-dimension parabolic equation
- Riccati型方程 Riccati equation
- 三维抛物型方程 Three-dimension parabolic equation
- 退缩椭圆型方程 degenerate Elliptical equation
- 二维抛物型方程 equation of two-dimensional parabolic type
- Liénard型方程 Liénard equations
- 脉冲抛物型方程 impulse parabolic equation
- 一阶双曲型方程 1-order hyperbolic equation
- 中立抛物型方程 neutral parabolic equation
- 一维双曲型方程 one-dimension hyperbolic equation
- 一雏抛物型方程 one-dimensional parabolic equation
