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Refinements and Sharpenings of Some Double Inequalities for Bounding the Gamma Function  
 
  Authors: Bai-Ni Guo, Ying-Jie Zhang, Feng Qi,  
  Keywords: Inequality, Refinement, Sharpening, Generalization, Kečlić-Vasić-Alzer's double inequalities.  
  Date Received: 21/05/2007  
  Date Accepted: 22/01/2008  
  Subject Codes:

Pri: 33B15; Sec: 26D07.

  
  Editors: Pietro Cerone,  
 
  Abstract:

In this paper, some sharp inequalities for bounding the gamma function $ Gamma(x)$ and the ratio of two gamma functions are established. From these, several known results are recovered, refined, extended and generalized simply and elegantly. ;


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