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Bibliographic Details
Main Authors: Xiang, Jianli, Hu, Guanghui
Format: Preprint
Published: 2025
Subjects:
Online Access:https://arxiv.org/abs/2512.07440
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Table of Contents:
  • We study time harmonic scattering problems in linear elasticity in $\mathbb{R}^{2}$. We show that certain penetrable scatterers with rectangular corners scatter every incident wave nontrivially. Even though these scatterers have interior transmission eigenvalues, the far field operator has a trivial kernel at every real frequency. Our approach relies on a special decomposition of the elastic Lamé operator and also provides an alternative idea for treating inverse elastic medium problems with a general polygonal support.