Acta mathematica scientia,Series A ›› 2014, Vol. 34 ›› Issue (6): 1372-1380.

• Articles • Previous Articles     Next Articles

Value Sharing for a Meromorphic Function with Its q-Shift Difference

 QI Xiao-Guang1, YANG Lian-Zhong2   

  1. 1.University of Jinan, School of Mathematics, Jinan |250022|2.Shandong University, School of Mathematics, |Jinan  |250100
  • Received:2013-07-10 Revised:2014-06-23 Online:2014-12-25 Published:2014-12-25
  • Supported by:

    国家自然科学基金(11301220, 11371225)、数学天元基金(11226094)、山东省自然科学基金(ZR2012AQ020, ZR2010AM030)和济南大学博士基金(XBS1211)资助.

Abstract:

This research is a continuation of a recent paper [15]. Shared value problems related to a meromorphic function
f(z) and its q-difference operator Δq, cf are studied. It is shown, for instance, that if f(z) is of zero order and shares four values IM with its q-difference operator Δq, cf = f(qz+c)-f(z), then f(z)=Δq, cf. Moreover, we also consider problems on sharing values of f(z) and Δq, cf when their orders are not an integer or infinite.

Key words: q-Shift difference, Meromorphic functions, Nevanlinna theory, Sharing value

CLC Number: 

  • 30D35
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