Some properties of the psi and polygamma functions

Details Some properties of the psi and polygamma functions Some properties of the psi and polygamma functions

2009-03-05

arxiv.org/abs/0903.1003v1

Bai-Ni Guo and Feng Qi, Some properties of the psi and polygamma functions, Hacettepe Journal of Mathematics and Statistics 39

Mathematics

Classical Analysis and ODEs

11 pages

Scientific paper

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.

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