On some inequalities for the gamma and psi functions
Mathematics of Computation
Inequalities for the gamma and q-gamma functions
Journal of Approximation Theory
Sums, products and ratios for Mckay's bivariate gamma distribution
Mathematical and Computer Modelling: An International Journal
Rate of convergence of new Gamma type operators for functions with derivatives of bounded variation
Mathematical and Computer Modelling: An International Journal
Infinite family of approximations of the Digamma function
Mathematical and Computer Modelling: An International Journal
A certain function class related to the class of logarithmically completely monotonic functions
Mathematical and Computer Modelling: An International Journal
Full length article: A completely monotonic function involving q-gamma and q-digamma functions
Journal of Approximation Theory
Hi-index | 0.98 |
The aim of this paper is to refine some recent results stated by Alzer and Grinshpan [H. Alzer, A.Z. Grinshpan, Inequalities for the gamma and q-gamma functions J. Approx. Theory 144 (2007) 67-83] and Batir [N. Batir, An interesting double inequality for Euler's gamma function J. Inequal. Pure Appl. Math. 5(4) (2004) article 97] concerning the problem of approximation of the gamma function in terms of the digamma function.