Title of article :
A new upper bound in the second Kershawʹs double inequality and its generalizations
Author/Authors :
Qi ، نويسنده , , Feng and Guo، نويسنده , , Senlin and Chen، نويسنده , , Shou-Xin، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2008
Abstract :
In the paper, a new upper bound in the second Kershawʹs double inequality involving ratio of gamma functions is established, and, as generalizations of the second Kershawʹs double inequality, the divided differences of the psi and polygamma functions are bounded.
Keywords :
Generalization , EXTENSION , Logarithmical , Generalized logarithmic mean , Ratio of gamma functions , Kershawיs double inequality , Divided difference , Completely monotonic function , Polygamma function , refinement , Upper bound , Psi function , Identric mean , Exponential mean
Journal title :
Journal of Computational and Applied Mathematics
Journal title :
Journal of Computational and Applied Mathematics
