1Department of Mathematics, Faculty of Science, King Abdulaziz University, P. O. Box 80203, Jeddah 21589, Saudi Arabia
2Department of Mathematics, Faculty of Science, Mansoura University, ansoura 35516, Egypt
Turkish Journal of Analysis and Number Theory.
2014,
Vol. 2 No. 4, 147-151
DOI: 10.12691/tjant-2-4-8
Copyright © 2014 Science and Education PublishingCite this paper: Mansour Mahmoud. A New Proof of an Inequality for the Logarithm of the Gamma Function and Its Sharpness.
Turkish Journal of Analysis and Number Theory. 2014; 2(4):147-151. doi: 10.12691/tjant-2-4-8.
Correspondence to: Mansour Mahmoud, Department of Mathematics, Faculty of Science, King Abdulaziz University, P. O. Box 80203, Jeddah 21589, Saudi Arabia. Email:
mansour@mans.edu.egAbstract
In the paper, the author shows that the partial sums

are alternatively larger and smaller than the generalized Euler’s harmonic numbers

with sharp bounds, where γ is the Euler's constant,

are the Bernoulli numbers and ψ is the digamma function.
Keywords