数学物理学报 ›› 2013, Vol. 33 ›› Issue (4): 728-734.

• 论文 • 上一篇    下一篇

一类缓慢增长的亚纯函数微分多项式的例外集

谭卫平|詹小平   

  1. 湖南第一师范学院数学系 长沙 |410205
  • 收稿日期:2012-01-09 修回日期:2013-04-12 出版日期:2013-08-25 发布日期:2013-08-25
  • 基金资助:

    湖南省教育厅科研基金(09C228)资助

The Exceptional Set for the Differential Polynomials of a Class of Slowly Growing Meromorghic Function

 TAN Wei-Ping, ZHAN Xiao-Ping   

  1. Department of Mathematics, Hunan First Normal University, Changsha |410205
  • Received:2012-01-09 Revised:2013-04-12 Online:2013-08-25 Published:2013-08-25
  • Supported by:

    湖南省教育厅科研基金(09C228)资助

摘要:

从例外集的角度研究了亚纯函数微分多项式的值分布, 证明了: 对于满足δ(∞, f)≥1-α>0的超越亚纯函数f(z), 若T(r, f)=O((log r)2), 则微分多项式f kQ[f] 在可数个圆盘并集之外取任何非零有限复数无穷次, 其中k>1+α(1+ΓQ)/1-α, ΓQQ[f]的权.

关键词: 整函数, 亚纯函数, 例外集, 微分多项式,  ε

Abstract:

The value distribution of differential polynomials f kQ[f] in meromorphic function f(z) was studied from a viewpoint of exceptional set. We prove the following result. Suppose that f is a transcendental meromorphic function such that δ(∞, f)≥1-α>0. Then if T(r, f)=O((log r)2),  f kQ[f] asumes any non-zero finite complex number infinitely often outside the union of the discs, where k>1+α(1+ΓQ)/1-α.

Key words: Entire function,  Meromorphic function,  Exceptional set,  Differential polynomial,  ε set

中图分类号: 

  • 30M