数学物理学报

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亚纯函数的奇异方向

柳学坤;吴昭君   

  1. 咸宁学院数学系, 咸宁 437005
  • 收稿日期:2006-01-09 修回日期:2007-03-15 出版日期:2007-10-25 发布日期:2007-10-25
  • 通讯作者: 柳学坤
  • 基金资助:

    基金项目:国家自然科学基金(10471048)、湖北省教育厅重点研究项目(2003A001)和咸宁学院重点资助研究项目(KT0623, KZ0629)资助

On the Singular Direction of Meromorphic Function

Liu Xuekun; Wu Zhaojun   

  1. Department of Mathematics, Xianning College, Xianning 437005
  • Received:2006-01-09 Revised:2007-03-15 Online:2007-10-25 Published:2007-10-25
  • Contact: Liu Xuekun

摘要: 该文应用Ahlfors的覆盖曲面理论,讨论了复平面上超越亚纯函数的奇异 方向,证明了亚纯函数涉及一类有理函数的T方向的存在性,又一次证实了郑 建华的一个猜想.

关键词: 覆盖曲面, Borel方向, Julia方向, T方向

Abstract: In this paper, by using Ahlfors' theory of covering surface, the singular directions of meromorphic functions are discussed. The existence of T direction concerning a rational function is established, which confirms a Zheng's conjecture.

Key words: Covering surface, Borel direction, Julia diretion, T direction

中图分类号: 

  • 30D35