Chinese Quarterly Journal of Mathematics ›› 2011, Vol. 26 ›› Issue (3): 448-452.

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Further Results of Meromorphic Functions that Share a Polynomial 

  

  1. College of Mathematics and Statistics, Nanjing Audit University

  • Received:2008-10-28 Online:2011-09-30 Published:2023-04-24
  • About author:QIU Hui-ling(1957-), female, native of Lianyungang, Jiangsu, a professor of Nanjing Audit University, Ph.D., engages in complex analysis.
  • Supported by:
    Supported by the Natural Science Foundation of Jiangsu Education Department(07KJD110086);

Abstract: In this paper, we use the theory of value distribution and study the uniqueness of meromorphic functions. We will prove the following result: Let f(z) and g(z) be two transcendental meromorphic functions, p(z) a polynomial of degree k, n≥max{11, k+1} a positive integer. If fn(z)f(z) and gn(z)g(z) share p(z)CM, then either f(z)=c1ecp(z)dz, g(z)=c2ecp(z)dz ,where c1, c2 and c are three constants satisfying (c1c2)n+1c2=-1 or f(z)≡tg(z) for a constant t such that tn+1=1.

Key words: meromorphic function, polynomial, constant, zero point

CLC Number: