Normal Families of Meromorphic Functions Concerning Higher Derivative and Shared Values | Zendy

Wei Chen | Zendy; Wenjun Yuan | Zendy; Tian Hong-gen | Zendy

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Normal Families of Meromorphic Functions Concerning Higher Derivative and Shared Values

Author(s) -

Wei Chen,

Wenjun Yuan,

Tian Hong-gen

Publication year - 2013

Publication title -

abstract and applied analysis

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.228

H-Index - 56

eISSN - 1687-0409

pISSN - 1085-3375

DOI - 10.1155/2013/368321

Subject(s) - meromorphic function , mathematics , fang , conjecture , derivative (finance) , pure mathematics , normal family , combinatorics , economics , biology , ecology , financial economics

We study the normal families related to a Hayman conjecture of higher derivative and concerning shared values and get two normal criteria. Our results improve the related theorems which were obtained independently, respectively by Fang and Yuan (2001), Yuan et al. ((2011) and (2012)), Wang et al. (2011), and Qiu et al. (2012). Meanwhile, some examples are given to show the sharpness of our results

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