Barkat Ali Bhayo
Published 2012-09-28, updated 2015-09-07Version 2
In this note we study the monotonicity of the function $x\mapsto \psi(1 +bx)^a/\psi(1 + ax)^b$. We also give the several inequalities involving the psi function, whic is the logarithmic derivative of the gamma function.
Some completely monotonic properties for the $(p,q )$-gamma function
Interpolating the Derivatives of the Gamma Function
The integrals in Gradshteyn and Ryzhik. Part 4: The Gamma function
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