On Uniqueness of Meromorphic Functions and Their Derivatives in One Angular Domain

作     者：WU Zhao dun SUN Dao Chun WU Zhao Jun;SUN Dao Chun

作者机构：Department of Mathematics Xianning University Hubei 437100 China School of Mathematics South China Normal University Guangzhou 510631 China 

出 版 物：《Journal of Mathematical Research and Exposition》 (数学研究与评论（英文版）)

年 卷 期：2009年第29卷第5期

页      面：889-894页

学科分类：081704[工学-应用化学] 07[理学] 08[工学] 0817[工学-化学工程与技术] 070305[理学-高分子化学与物理] 070104[理学-应用数学] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 0701[理学-数学] 

基　　金：Foundation item: the National Natural Science Foundation of China (No. 10471048) the Natural Science Foundation of Xianning College (No. BK0714) and the Natural Science Foundation of Hubei Educational Committee (No. 2009B2809) 

主　　题：uniqueness of meromorphic function derivative functions angular domain. 

摘      要：In this paper, applying the Nevanlinna theory of meromorphic function in one angular domain, we deal with a problem of uniqueness for meromorphic functions and their derivatives sharing three finite value ignoring multiplicities in an angular domain instead of the whole complex plane. Obtained results improve a recent result of Lin Weichuan and Seiki Mori.