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Bibliographic Details
Main Authors: Pushnitski, Alexander, Wigman, Igor
Format: Preprint
Published: 2023
Subjects:
Online Access:https://arxiv.org/abs/2309.07044
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Table of Contents:
  • We study the eigenvalue clusters of the Robin Laplacian on the 2-dimensional hemisphere with a variable Robin coefficient on the equator. The $\ell$'th cluster has $\ell+1$ eigenvalues. We determine the asymptotic density of eigenvalues in the $\ell$'th cluster as $\ell$ tends to infinity. This density is given by an explicit integral involving the even part of the Robin coefficient.