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arxiv: 0903.1003 · v1 · pith:GBJU6DJMnew · submitted 2009-03-05 · 🧮 math.CA

Some properties of the psi and polygamma functions

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keywords functionssomepolygammaconcavityextendedgeneralizedinequalitiesinvolving
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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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