Chinese Quarterly Journal of Mathematics ›› 2006, Vol. 21 ›› Issue (2): 297-300.

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Value Distribution of Differential Polynomials in Meromorphic Functions

  

  1. Department of Mathematics, Shangqiu Teachers' College, Shangqiu 476000, China
  • Received:2005-12-05 Online:2006-06-30 Published:2023-12-12
  • About author:LlUXiao-shu(1957-),male,native of Shangqiu,Henan,an associate professor of Shangqiu Teacher's College,engaged in a complex variable.
  • Supported by:
     Supported by the Natural Science Fundation of Henan Proivince(0211050200);

Abstract: Let f(z) be a meromorphic function and Ψ be the differential polynomial of f which satisfies the condition of N(r, f) + N (r, 1/f) = S(r, f). We obtain several results about the zero point of the Ψ and those results extend and improve the results of Yang and Yi in this paper.

Key words: Meromorphic function, differential polynomials, value distribution

CLC Number: