摘要
借用变量替换法及复合函数求导法则,提出新一类四阶微分方程,具有某种形式的解的充要条件,所得结论是对有关文献结果的推广与扩充.
By means of variable substitution and complex functional derivation method, this paper gives a new kind of four order different equation, some kind of solution with sufficient and necesiory conditions. The conclusion is drawn from amplification of relative references.
出处
《临沂师范学院学报》
2005年第3期1-3,共3页
Journal of Linyi Teachers' College
关键词
四阶
微分方程
变量替换
求导法则
充要条件
通解
four order
differential equation
Variable substitution
derivation method
sufficient conditions
general solution
