Original Article
Kyungpook Mathematical Journal 2010; 50(1): 71-80
Published online March 23, 2010
Copyright © Kyungpook Mathematical Journal.
Unicity of Meromorphic Function and its Derivative
Ang Chen, Guowei Zhang
Department of Mathematics, Shandong University, Jinan 250100, P. R. Chian
Received: March 23, 2010; Revised: March 23, 2010; Accepted: March 23, 2010
In this paper, we deal with the uniqueness problems of meromorphic functions that share a small function with its derivative and improve some results of Yang, Yu, Lahiri, and Zhang, also answer some questions of T. D. Zhang and W. R. Lü.
Keywords: Meromorphic functions, small functions, value sharing, uniqueness