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Entire function sharing a small function with its mixed-operators

  • Xianjing Dong and Kai Liu EMAIL logo
Published/Copyright: June 1, 2017
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Abstract

In this article, we investigate the uniqueness problem on a transcendental entire function f(z) with its linear mixed-operators Tf, where T is a linear combination of differential-difference operators Dην:=f(ν)(z+η) and shift operators Eζ:=f(z+ζ), where η,ν,ζ are constants. We obtain that if a transcendental entire function f(z) satisfies λ(f-α)<σ(f)<+, where α(z) is an entire function with σ(α)<1, and if f and Tf share one small entire function a(z) with σ(a)<σ(f), then Tf-a(z)f(z)-a(z)=τ, where τ is a non-zero constant. Furthermore, we obtain the value τ and the expression of f by imposing additional conditions.

MSC 2010: 30D35; 39A10

Award Identifier / Grant number: 11661052

Award Identifier / Grant number: 11301260

Award Identifier / Grant number: 20161BAB211005

Award Identifier / Grant number: 20132BAB211003

Funding statement: This work was partially supported by the NSFC (nos. 11661052, 11301260), the NSF of Jiangxi (nos. 20161BAB211005, 20132BAB211003).

Acknowledgements

The authors would like to thank the referee for his/her helpful suggestions and comments.

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Received: 2015-03-05
Revised: 2015-10-15
Accepted: 2015-11-05
Published Online: 2017-06-01
Published in Print: 2019-03-01

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