非线性四阶微分方程
nonlinear fourth-order differential equation
四阶微分方程
fourth-order differential equation
fourth-order differential equations
fourth order differential equation
differential equation of fourth order
differential equation with four orders
泛函微分微分方程
functional differential equation
四阶抛物型积分－微分方程
fourth order parabolic integro-differential proble
fourth order parabolic integro-differential problems
四阶线性抛物型积分-微分方程
fourth order parabolic integro-differential problems
Kolmogorov高阶微分方程组
the high-order kolmogorov differential system of e
n阶微分方程
differential equation of order n
不连续二阶积分微分方程
discontinous second order integro-differential equ
二阶积分微分方程
second order integro-differential equations
二阶微分方程
second-order differential equation
second order differential equation
second order equation
differential equation of second order
two order differential equation
second order differential equations
second-order ordinary differential equations
二阶微分方程热模型
second order differential equation of thermal model
二阶微分方程式
second order differential equation
二阶微分方程组
calculus of variations
systems of second order differential equations
非线性二阶微分方程
nonlinear second order differential equation
分数阶微分方程
fractional ordinary differential equations
fractional differential equations
fractional diflFerential equation
differential equations of fractional order
fractional differentia equation
fractional differential equation
factional differential equations
fractional differenrial equation
fractional-order differential equation
分数阶微分方程组
fractional differential equations
高阶微分方程
higher order differential equation
differential equation of higher order
higher-order ordinary differential equations
higher-order differential equation
high-order differential equation
High order differential equation
高阶微分方程边值问题
Higher order boundary value problem
高阶微分方程组
higher order boundary value systems