Normal families and shared values of meromorphic functions

被引:3
作者
Lei, Chunlin [1 ]
Yang, Degui [1 ]
Fang, Mingliang [1 ]
机构
[1] S China Agr Univ, Dept Appl Math, Guangzhou 510642, Guangdong, Peoples R China
关键词
Normal families; Meromorphic functions; Shared values; MULTIPLE ZEROS;
D O I
10.1016/j.jmaa.2009.04.020
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
Let k (>= 2) be a positive integer, let F be a family of meromorphic functions in a domain D, all of whose zeros have multiplicity at least k + 1, and let a(z) (not equal 0), h(z) (not equivalent to 0) be two holomorphic functions on D. If, for each f is an element of F, f = a(z) double left right arrow f((k)) = h(z), then F is normal in D. (C) 2009 Published by Elsevier Inc.
引用
收藏
页码:143 / 150
页数:8
相关论文
共 10 条
[1]  
Fang ML., 2002, Comput. Methods Funct. Theory, V2, P385, DOI [10.1007/BF03321856, DOI 10.1007/BF03321856]
[2]  
HAYMAN WK, 1964, MEROMORPHIC FUNCTION
[3]   Exceptional functions and normal families of meromorphic functions with multiple zeros [J].
Lei, Chunlin ;
Fang, Mingliang ;
Yang, Degui ;
Wang, Xueqin .
JOURNAL OF MATHEMATICAL ANALYSIS AND APPLICATIONS, 2008, 341 (01) :224-234
[4]   Normal families and shared values [J].
Pang, XC ;
Zalcman, L .
BULLETIN OF THE LONDON MATHEMATICAL SOCIETY, 2000, 32 :325-331
[5]  
Schiff J. L., 1993, Normal Families
[6]   SHARING VALUES AND NORMALITY [J].
SCHWICK, W .
ARCHIV DER MATHEMATIK, 1992, 59 (01) :50-54
[7]  
Wang YF, 1998, ACTA MATH SIN, V14, P17
[8]  
Yang L., 1993, Value distribution theory, pxii+269
[9]   Normal Families of Meromorphic Functions whose Derivatives Omit a Function [J].
Xuecheng Pang ;
Degui Yang ;
Lawrence Zalcman .
Computational Methods and Function Theory, 2003, 2 (1) :257-265
[10]  
ZHANG GM, 2009, B LONDON MATH SOC, V40