分担集合的亚纯函数正规族
- 1. 黄河科技学院 信息工程学院, 郑州 450063;
2. 南昌工程学院 理学院, 南昌 330099
摘要: 把亚纯函数正规族与分担值或分担集合结合起来考虑是亚纯函数正规族理论研究的一个重要课题.目前正规族的相关理论在复动力系统、复微分方程和整函数唯一性等方面都有着重要的应用.利用Nevanlinna理论研究一类涉及分担集合的亚纯函数族的正规性.主要证明了如下的结论:设F={f(z)}是区域D内的一族亚纯函数,S1={a1,a2,a3}和S2={b1,b2,b3}均为由3个互异的有限复数所构成的集合,如果对于任意的f(z)∈F,有{z∈D:f(z)∈S1}={z∈D:f'(z)∈S2},那么F={f(z)}在D内正规.
Normal Families of Meromorphic Functions Related to Shared Sets
- 1. 黄河科技学院 信息工程学院, 郑州 450063;
2. 南昌工程学院 理学院, 南昌 330099
- Received Date:
2017-09-05
Keywords:
- 亚纯函数 /
- 正规族 /
- 分担集合
Abstract: It is an important subject for the study of the normal family theory of meromorphic functions to combine the normal families of meromorphic functions with the shared values or the shared set. At present, the theory of normal families has important applications in complex dynamical systems, complex differential equations and the uniqueness of entire functions. Using Nevanlinna theory researched the shared sets of meromorphic function families. In this paper, it proves that, let F={f(z)} be a family of meromorphic functions on domain D,S1={a1, a2, a3} and S2={b1, b2, b3} be two sets with three distinct complex numbers. If for every f(z)∈F,{z∈D:f(z)∈S1}={z∈D:f'(z)∈S2}, then F={f(z)} is normal on domain D.