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1 results

  • Some completely monotonic functions involving the gamma and polygamma functions

  • Part of
  • Feng Qi, Bai-Ni Guo, Chao-Ping Chen
  • Journal:
    Journal of the Australian Mathematical Society / Volume 80 / Issue 1 / February 2006
    Published online by Cambridge University Press:
    09 April 2009, pp. 81-88
    Print publication:
    February 2006
    • Article
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  • The function [Γ(x + 1)]1/x(1 + 1/x)x/x is strictly logarithmically completely monotonic in (0, ∞). The function ψ″ (x + 2) + (1 + x2)/x2(1 + x)2 is strictly completely monotonic in (0, ∞).