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arXiv · 0902.2519

Proofs for a monotonicity result of a function involving the psi and exponential functions

Feng Qi·Bai-Ni Guo
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Abstract

In the note, two alternative proofs are provided for a monotonicity result that the function $\psi(x)+\ln\bigl(e^{1/x}-1\bigr)$ is strictly increasing on $(0,\infty)$, where $\psi(x)$ is the psi function.

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Feng Qi, Bai-Ni Guo. 2009-02-15. Proofs for a monotonicity result of a function involving the psi and exponential functions. https://doi.org/10.1524/anly.2012.1175

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