Wendel's and Gautschi's inequalities: Refinements, extensions, and a class of logarithmically completely monotonic functions

Applied Mathematics and Computation

Volumn 205, Issue 1, 2008, Pages 281-290

  Qi, Feng ^a   Guo, Bai Ni ^b  

^a HENAN NORMAL UNIVERSITY   (China)

^b HENAN POLYTECHNIC UNIVERSITY   (China)

Author keywords

Elementary function involving the exponential function; Extension; Inequality; Logarithmically completely monotonic function; Monotonicity; Polygamma function; Psi function; Ratio of gamma functions; Refinement; Sharpening; Sufficient and necessary condition

Indexed keywords

THEOREM PROVING;

ELEMENTARY FUNCTION INVOLVING THE EXPONENTIAL FUNCTION; EXTENSION; INEQUALITY; LOGARITHMICALLY COMPLETELY MONOTONIC FUNCTION; MONOTONICITY; POLYGAMMA FUNCTION; PSI FUNCTION; RATIO OF GAMMA FUNCTIONS; REFINEMENT; SHARPENING; SUFFICIENT AND NECESSARY CONDITION;

PROBABILITY DENSITY FUNCTION;

EID: 54049135100     PISSN: 00963003     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.amc.2008.07.005     Document Type: Article

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