Some normality criteria of functions related a Hayman conjecture
نویسندگان
چکیده
* Correspondence: [email protected]; [email protected] School of Mathematics and Information Science, Guangzhou University, Guangzhou 510006, China School of Economic and Management, Guangzhou University of Chinese Medicine, Guangzhou 510006, China Full list of author information is available at the end of the article Abstract In the article, we study the normality of families of meromorphic functions concerning shared values. We consider whether a family meromorphic functions F is normal in D, if for every pair of functions f and g in F , f f’ and g g’ share a nonzero value a. Two examples show that the conditions in our results are best possible in a sense.
منابع مشابه
Some Normal Criteria for Families of Meromorphic Functions
In the paper, we study the normality of families of meromorphic functions related a Hayman Conjecture. We consider whether a family meromorphic functions F is normal in D, if for each function f in F , f ′ + af = b has at most one zero, where n is a positive integer, a and b = 0 are two finite complex numbers. Some examples show that the conditions in our results are best possible.
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تاریخ انتشار 2011