Value distribution of general differential-difference polynomials of meromorphic functions

  • Renukadevi S. DyavanalEmail author
  • Madhura M. Mathai
Original Research Paper


In this paper, by reducing the conditions on the zeros and poles of a finite order meromorphic function f(z), we improve the results by Zheng and Chen (Acta. Math. Sin. 54, 983–992 [12]) and Zheng and Xu (Abstr. Appl. Anal. 12 pages [13]).


Meromorphic function f(zDeficiency of zeros and poles of f(zOrder of f(z) and differential-difference polynomials of  f(z) 

Mathematics Subject Classification

30D35 39A05 



The authors are thankful to the referees for their valuable suggestions towards the improvement of the paper. First author is supported by UGC-SAP DRS-III, Department of Mathematics, Karnatak University, Dharwad. Ref. No. F.510/3/DRS-III/2016(SAP-I) Dated: 29th February 2016 and the second author was supported by UGC-UPE fellowship, Department of Mathematics, Karnatak University, Dharwad. Ref. No. KU/Sch/UGC-UPE/2014-15/894.


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Copyright information

© Forum D'Analystes, Chennai 2018

Authors and Affiliations

  1. 1.Department of MathematicsKarnatak UniversityDharwadIndia

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