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arXiv:0903.1003 [math.CA]AbstractReferencesReviewsResources

Some properties of the psi and polygamma functions

Feng Qi, Bai-Ni Guo

Published 2009-03-05Version 1

In this paper, some monotonicity and concavity results of several functions involving the psi and polygamma functions are proved, and then some known inequalities are extended and generalized.

Comments: 11 pages
Journal: Bai-Ni Guo and Feng Qi, Some properties of the psi and polygamma functions, Hacettepe Journal of Mathematics and Statistics 39 (2010), no. 2, 219--231
Categories: math.CA
Subjects: 33B15, 26A48, 26A51, 26D07
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