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Bibliographic Details
Main Authors: Kachanovska, Maryna, Peillon, Étienne
Format: Preprint
Published: 2025
Subjects:
Online Access:https://arxiv.org/abs/2510.15153
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Table of Contents:
  • We study a limiting absorption principle for the boundary-value problem describing a hybrid plasma resonance, with a regular coefficient in the principal part of the operator that vanishes on a curve inside the domain and changes its sign across this curve. We prove the limiting absorption principle by establishing a priori bounds on the solution in certain weighted Sobolev spaces. Next, we show that the solution can be decomposed into regular and singular parts. A peculiar property of this decomposition enables us to introduce a radiation-like condition in a bounded domain and to state a well-posed problem satisfied by the limiting absorption solution.