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与分担全纯函数相关的正规族

Normal Families and Shared Value of Holomorphic Function
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摘要 设F是在区域D内的一族亚纯函数,其零点重级至少为k,k是一个正整数,a(z)(≠0)在区域D内全纯.若对于任意的f∈F,有(1)f(z)与a(z)没有公共的零点;(2)f(z)=0f(k)(z)=a(z)■0<|f^((k+1))(z)-a'(x)|<|a(z)|,则F在D内正规. Let F be a family of meromorphic functions in a domain D, all of whose zeros have multiplicity at least k with k being a positive integer, and a(z) (5 0) be a holomorphic function in D. If, for each f∈F (1)f(z) and a(z)have no common zeros;(2)f(z)=0 f(k)(z)=a(z)■0〈|f^((k+1))(z)-a'(x)|〈|a(z)|,then F is normal in D.
作者 李三华 LI Sanhua(College of Mathematical and Physical Sciences, Jinggangshan University, Jian 343009, Jiangxi, China.)
出处 《数学年刊(A辑)》 CSCD 北大核心 2016年第1期89-96,共8页 Chinese Annals of Mathematics
基金 吉安市科技支撑项目(No.[2015]10号13)的资助
关键词 亚纯函数 零点 正规族 Meromorphic function, Zero point, Normality
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