一类二阶非线性微分方程解的零点存在定理  

The existence theorem of zero-point for one class of second order nonlinear differential equation

作　　者：郑镇汉[1] 李亚兰[2] 

机构地区：[1]广州航海高等专科学校基础部,广东广州510330 [2]仲恺农业工程学院计算科学系,广东广州510225

出　　处：《仲恺农业技术学院学报》2008年第3期59-61,共3页Journal of Zhongkai Agrotechnical College

摘　　要：通过建立两个微分恒等式,讨论了一类二阶非线性微分方程解的零点存在性,得到了2个非线性微分方程解的零点存在定理,并以实例说明了其有效性.With two differential identifies set up, the existence of zero-point of solutions for one class of second order nonlinear differential equation was discussed, two existenee theorems of zero-point were obtained, and the validity was illustrated by examples.

关 键 词：二阶非线性微分方程 微分恒等式 零点 

分 类 号：O175.4[理学—数学]