Normal families of meromorphic functions sharing one function

被引:0
|
作者
Qiu, Ling [1 ]
Hu, FeiFei [1 ]
机构
[1] Beijing Univ Technol, Coll Appl Sci, Beijing 100124, Peoples R China
关键词
meromorphic function; normal family; shared holomorphic function;
D O I
10.1186/1029-242X-2013-288
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
Suppose p(z) is a holomorphic function, the multiplicity of its zeros is at most d, P(z) is a nonconstant polynomial. Let F be a family of meromorphic functions in a domain D, all of whose zeros and poles have multiplicity at least max{k/2 + d + 1, k + d}. If for each pair of functions f and g in F, P(f)f((k)) and P(g)g((k)) share a holomorphic function p(z), then F is normal in D. It generalizes and extends the results of Jiang, Gao and Wu, Xu.
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页数:11
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