数学物理学报(英文版) ›› 2013, Vol. 33 ›› Issue (2): 556-564.doi: 10.1016/S0252-9602(13)60019-3

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ON ZEROS OF SOLUTIONS OF HIGHER ORDER HOMOGENEOUS LINEAR DIFFERENTIAL EQUATIONS

蓝双婷|陈宗煊   

  1. School of Mathematical Sciences, South China Normal University, Guangzhou 510631, China
  • 收稿日期:2011-10-02 修回日期:2012-06-28 出版日期:2013-03-20 发布日期:2013-03-20
  • 基金资助:

    This project was supported by the National Natural Science Foundation of China (11171119) and Funding of Tianyuan (11226090).

ON ZEROS OF SOLUTIONS OF HIGHER ORDER HOMOGENEOUS LINEAR DIFFERENTIAL EQUATIONS

 LAN Shuang-Ting, CHEN Zong-Xuan   

  1. School of Mathematical Sciences, South China Normal University, Guangzhou 510631, China
  • Received:2011-10-02 Revised:2012-06-28 Online:2013-03-20 Published:2013-03-20
  • Supported by:

    This project was supported by the National Natural Science Foundation of China (11171119) and Funding of Tianyuan (11226090).

摘要:

In this article, we investigate the exponent of convergence of zeros of solutions for some higher-order homogeneous linear differential equation, and prove that if Ak−1 is the dominant coefficient, then every transcendental solution f(z) of equation
f(k) + Ak−1f(k−1) + … + A0f = 0
satisfies λ(f) = 1, where λ(f) denotes the exponent of convergence of zeros of the meromor-phic function f(z).

关键词: Differential equation, exponent of convergence of zeros, type

Abstract:

In this article, we investigate the exponent of convergence of zeros of solutions for some higher-order homogeneous linear differential equation, and prove that if Ak−1 is the dominant coefficient, then every transcendental solution f(z) of equation
f(k) + Ak−1f(k−1) + … + A0f = 0
satisfies λ(f) = 1, where λ(f) denotes the exponent of convergence of zeros of the meromor-phic function f(z).

Key words: Differential equation, exponent of convergence of zeros, type

中图分类号: 

  • 30D35