Some properties for ν-zeros of parabolic cylinder functions

  • C. Blanchet-Scalliet Institut Camille Jordan, Ecole Centrale de Lyon, France
  • D. Dorobantu Institut de Science Financière et d'Assurances, France
  • B. Nieto Institut Camille Jordan, Ecole centrale de Lyon, France

Abstract

Let Dν(z) be the Parabolic Cylinder function. We study the ν-zeros of the function ν → Dν(z) with respect to the real variable z. We establish a formula for the derivative of a zero and deduce some monotonicity results. Then we also give an asymptotic expansion for ν-zeros for large positive z.

Published
2024-02-12
Section
Articoli