数学物理学报 ›› 2000, Vol. 20 ›› Issue (4): 540-546.

• 论文 • 上一篇    下一篇

圆内亚纯函数与其微分多项式的公共Borel点

  

  1. (福建师范大学数学系 福州 350007)

  • 出版日期:2000-09-08 发布日期:2000-09-08

On Common Borel Points of a Meromorphic Function and its Differential Polynomial in the Unit Circle

  1. (Department of Mathematics, Fujian Normal University, Fuzhou 350007)

  • Online:2000-09-08 Published:2000-09-08

摘要:

该文把A.P.Singh关于一类齐次微分多项式级的结果推广到更一般的微分多项式.并证明了:如果Q(f)≠0是圆内有限正级亚纯函数f的微分多项式,则f(k0)Q(f)的Borel点必是f的Borel点,其中K0满足0≤K0≤min{K:f(k)}出现在Q(f)中}.

关键词: 亚纯函数, 微分多项式, Borel点

Abstract:

Let f be a meromorphic function of finite positive order in the unit circle and F be a differential polynomial in f, If the order of growth of F is same as that of f, then the Borel points of F must be the Borel points of f. In particular the Borel points of a monomial in f are also the Borel points of f under certain conditions. In addition, A result on orders of homogeneous differential polynomial due to Singh,A.P.is generalized.

Key words: Meromorphic functions, Differential polynomial, Borel points

中图分类号: 

  • 30D