分担四个或五个小函数的亚纯函数

Meromorphic Functions which Sharing Four or Five Small Functions

中文关键词:  亚纯函数  IM（CM）分担小函数  唯一性

英文关键词:meromorphic function  IM （CM ） sharing function  uniqueness.

中文摘要:

      本文证明了两个非常数亚约函数在具有五个ＩＭ分担小函数的前提下附加一定条件，则这两个函数必恒等，并研究了两个具有四个ＣＭ分担小函数的非常数亚纯函数之间的关系，推广了Ｎｅｖａｎｌｉｎｎａ四值定理．

英文摘要:

      In this paper, we prove that if two nonconstant meromorphic functions share five distinct small functions IM and satisfy property condition, then both functions agree. And we also study the relations between two noncomstant meromorphic functions which sharing four distinct small functions CM. As a consequent, we generalized 4-point theorem due to Nevanlinna.