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An inequality involving the gamma and digamma functions

  • Feng Qi EMAIL logo and Bai-Ni Guo
Published/Copyright: May 1, 2016

Abstract

In the paper, the authors establish an inequality involving the gamma and digamma functions and apply it to prove the negativity and monotonicity of a function involving the gamma and digamma functions.

Funding source: NNSF

Award Identifier / Grant number: 11361038

Funding statement: The first author was partially supported by the NNSF of China under Grant No. 11361038.

The authors thank the anonymous referees for their valuable comments on the original version of this paper.

References

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Received: 2015-7-20
Revised: 2016-3-24
Accepted: 2016-4-8
Published Online: 2016-5-1
Published in Print: 2016-6-1

© 2016 by De Gruyter

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