摘要
讨论了三阶变系数齐次线性微分方程可降阶的3个充分条件,它是文献[1～2]中相关结论的改进和发展。
Studied the reduced sufficient conditions which third order homogeneous linear differential equation with varied coefficient. They are improvements and expansions for some results of [1-2].
出处
《高师理科学刊》
2007年第2期1-2,共2页
Journal of Science of Teachers＇College and University
基金
黑龙江省教育厅科学技术研究资助项目(10541287)
关键词
齐次线性微分方程
变系数
变换
降阶
homogeneous linear differential equation
varied coefficient
transform
reduced order
