ON CLASSIFICATION OF MEROMORPHIC FUNCTIONS BY THE ZEROS OF THEIR DERIVATIVE

作     者：沈力健 SHEN LIJIAN (LI-CHIEN SHEN (Department of Mathematics, California Institute of Technology, U S A )

作者机构：Department of Mathematics California Institute of Technology U S A 

出 版 物：《Science in China,Ser.A》 (中国科学A辑(英文版))

年 卷 期：1983年第8期

页      面：825-834页

学科分类：07[理学] 0701[理学-数学] 070101[理学-基础数学] 

主　　题：show ON CLASSIFICATION OF MEROMORPHIC FUNCTIONS BY THE ZEROS OF THEIR DERIVATIVE real 

摘      要：The real meromorphic function tan z has the property that it has only simple real poles and real zeros, its first derivative has no zeros, and its second derivative has only real zeros. Our result says that it is essentially the only transcendental meromorphic function with this property.