Nodal set of monochromatic waves satisfying the Random Wave Model

Abstract

We construct deterministic solutions to the Helmholtz equation in ${\mathbb{R}}^m$ which behave accordingly to the Random Wave Model. We then find the number of their nodal domains, their nodal volume and the topologies and nesting trees of their nodal set in growing balls around the origin. The proof of the pseudo-random behaviour of the functions under consideration hinges on a de-randomisation technique pioneered by Bourgain and proceeds via computing their $L^p$-norms. The study of their nodal set relies on its stability properties and on the evaluation of their doubling index, in an average sense.

References in corpus (6)

• Nodal domains of Maass forms I
• On the number of nodal domains of toral eigenfunctions
• Local Asymmetry and the Inner Radius of Nodal Domains
• Nodal domains of Maass forms II
• Local version of Courant's nodal domain theorem
• Lower bounds for the number of nodal domains for sums of two distorted plane waves in non-positive curvature

Cited by in corpus (1)

• Expected nodal volume for non-Gaussian random band-limited functions