Acta mathematica scientia,Series B ›› 2014, Vol. 34 ›› Issue (6): 1865-1874.doi: 10.1016/S0252-9602(14)60130-2

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DIFFERENTIAL POLYNOMIALS SHARING ONE VALUE

 ZHANG Ji-Long*, YANG Lian-Zhong   

  1. School of Mathematics &|Systems Science, Beihang University, Beijing 100191, China; School of Mathematics, Shandong University, Jinan 250100, China
  • Received:2013-05-15 Revised:2013-10-10 Online:2014-11-20 Published:2014-11-20
  • Contact: ZHANG Ji-Long,jilongzhang2007@gmail.com E-mail:jilongzhang2007@gmail.com;lzyang@sdu.edu.cn
  • Supported by:

    This research was supported by the NNSF (11201014, 11171013, 11126036, 11371225) and the YWF-14-SXXY-008, YWF-ZY-302854 of Beihang University. This research was also supported by the youth talent program of Beijing (29201443).

Abstract:

In this paper, we investigate uniqueness problems of differential polynomials of meromorphic functions. Let a, b be non-zero constants and let n, k be positive integers satisfying 3k+12. If fn+af(k) and gn+ag(k) share b CM and the b-points of fn+af(k) are not the zeros of f and g, then f and g are either equal or closely related.

Key words: meromorphic function, differential polynomial, share value

CLC Number: 

  • 30D35
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