3阶非线性微分方程解的Sturm比较定理

Sturm Comparison Theorem of Three Order Nonlinear Differential Equations

利用微分不等式,讨论了一类3阶非线性微分方程解的Sturm比较定理,得到了其解的零点存在的充分性条件.

Using differential inequality,the Sturm comparison theorem of a class of third order nonlinear differential equations is discussed,and the zero point existence of the equations is obtained.