数学物理学报 ›› 2009, Vol. 29 ›› Issue (4): 918-928.

• 论文 • 上一篇    下一篇

一类微分方程的解和小函数的关系

  

  1. (华南师范大学 数学科学学院, 广州, 510631)
  • 收稿日期:2007-07-30 修回日期:2008-05-14 出版日期:2009-08-25 发布日期:2009-08-25
  • 基金资助:

    国家自然科学基金(10871076)和广东省自然科学基金(06025059)资助

The Relation between Solutions of a Class of Differential Equations and Functions of Small Growth

  1. (School of Mathematical Sciences, South China Normal University, Guangzhou 510631)
  • Received:2007-07-30 Revised:2008-05-14 Online:2009-08-25 Published:2009-08-25
  • Supported by:

    国家自然科学基金(10871076)和广东省自然科学基金(06025059)资助

摘要:

研究二阶线性微分方程 f''+eaz f'+h(z)ebz f =0 的解以及它们的一阶、二阶、三阶导数, 微分多项式取小函数的点的收敛指数, 其中a, b 是非零复常数且a =cb(c>1), h(z)是非零多项式.

关键词: 微分方程, 收敛指数, 小函数

Abstract:

This paper investigates the relation between solutions, their 1st, 2nd and 3rd derivatives, differential polynomial of the equation f''+eaz f'+h(z)ebz f =0 with functions of small growth, where a, b are nonzero complex numbers such that a =cb~(c>1) and h(z) is a nonzero polynomial.

Key words: Differential equation, Exponent of convergence, Function of small growth

中图分类号: 

  • 30D35