Zeros of Bessel functions: monotonicity, concavity, inequalities

Authors

  • Andrea Laforgia Roma Tre University
  • Pierpaolo Natalini Roma Tre University

Keywords:

Sturm comparison theorem, Zeros of Bessel functions, Inequalities, Monotonicity, Concavity (convexity) properties, Watson formula

Abstract

We present a survey of the most important inequalities and monotonicity, concavity (convexity) results of the zeros of Bessel functions. The results refer to the definition Jνκ of the zeros of Cν (x) = Jν (x) cosα −Yν (x) sinα, formulated in [6], where κ is a continuous variable. Sometimes, also the Sturm comparison theorem is an important tool of our results.

Author Biographies

  • Andrea Laforgia, Roma Tre University
    Department of Mathematics
    Largo San Leonardo Murialdo, 1
    00146, Rome, Italy
  • Pierpaolo Natalini, Roma Tre University
    Department of Mathematics
    Largo San Leonardo Murialdo, 1
    00146, Rome, Italy

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Published

2007-12-06

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Section

Articoli