Open Access

A Double Inequality for Gamma Function

Journal of Inequalities and Applications20092009:503782

Received: 12 June 2009

Accepted: 30 August 2009

Published: 27 September 2009


Using the Alzer integral inequality and the elementary properties of the gamma function, a double inequality for gamma function is established, which is an improvement of Merkle's inequality.


Gamma FunctionFull ArticleElementary PropertyIntegral InequalityPublisher Note

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Authors’ Affiliations

Haining Radio and TV University, Haining, China
Department of Mathematics, Huzhou Teachers College, Huzhou, China


© X. Zhang and Y. Chu. 2009

This article is published under license to BioMed Central Ltd. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.