A high-contrast composite with annular inclusions: Norm-resolvent asymptotics
Analysis of PDEs
2023-11-02 v2
Abstract
We investigate the operator-norm resolvent asymptotics of a high-contrast composite, consisting of a "stiff" material, with annular "soft" inclusions (a "stiff-soft-stiff" setup). This setup is derived from two models with very different effective wave propagation behaviors. Our analysis is based on an operator-framework proposed by Cherednichenko, Ershova, and Kiselev in [Effective Behaviour of Critical-Contrast PDEs: Micro-resonances, Frequency Conversion, and Time Dispersive Properties. I. Commun. Math. Phys. 375, p. 1833-1884]. Then, as a first step towards studying wave propagation on the stiff-soft-stiff composite, we use the effective description to derive analogous "dispersion functions".
Keywords
Cite
@article{arxiv.2212.10206,
title = {A high-contrast composite with annular inclusions: Norm-resolvent asymptotics},
author = {Yi-Sheng Lim},
journal= {arXiv preprint arXiv:2212.10206},
year = {2023}
}
Comments
54 pages, 3 figures