• Title of article

    SOME PROPERTIES OF THE PSI AND POLYGAMMA FUNCTIONS§

  • Author/Authors

    Guo, Bai-Ni Henan Polytechnic University - School of Mathematics and Informatics, China , Qi, Feng Tianjin Polytechnic University - College of Science - Department of Mathematics, China

  • From page
    219
  • To page
    231
  • Abstract
    In this paper, some monotonicity and concavity results of several functions involving the psi and polygamma functions are proved, and then some known inequalities are extended and generalized.
  • Keywords
    Psi function , Polygamma function , Monotonicity , Convexity , Concavity , Inequality , Necessary and sufficient condition , Generalization , Conjecture
  • Journal title
    Hacettepe Journal Of Mathematics an‎d Statistics
  • Journal title
    Hacettepe Journal Of Mathematics an‎d Statistics
  • Record number

    2600937

    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=10&DC=2600937