Sharp Jordan-type inequalities for Bessel functions

Árpád Baricz, Shanhe Wu

Research output: Contribution to journalArticle

9 Citations (Scopus)


In this paper our aim is to establish some sharp Jordan and Kober type inequalities for Bessel and modified Bessel functions of the first kind by using the monotone form of l'Hospital's rule. Moreover, by using the classical Cauchy mean value theorem inductively we deduce new series expansions for the Bessel and modified Bessel functions. These results extend and improve many known results in the literature.

Original languageEnglish
Pages (from-to)107-126
Number of pages20
JournalPublicationes Mathematicae
Issue number1-2
Publication statusPublished - Jan 1 2009



  • Bessel functions
  • Cauchy mean value theorem
  • Circular functions
  • Hyperbolic functions
  • Jordan-type inequalities
  • Kober-type inequalities
  • Modified bessel functions
  • Modified spherical bessel functions
  • Monotone form of l'hospital's rule
  • Spherical bessel functions
  • Taylor theorem with lagrange's form of the remainder

ASJC Scopus subject areas

  • Mathematics(all)

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