On local and global structures of transmission eigenfunctions and beyond

H Liu - Journal of Inverse and Ill-posed Problems, 2022 - degruyter.com
The (interior) transmission eigenvalue problems are a type of non-elliptic, non-selfadjoint
and nonlinear spectral problems that arise in the theory of wave scattering. They connect to …

On vanishing and localizing of transmission eigenfunctions near singular points: a numerical study

E Blåsten, X Li, H Liu, Y Wang - Inverse Problems, 2017 - iopscience.iop.org
This paper is concerned with the intrinsic geometric structure of interior transmission
eigenfunctions arising in wave scattering theory. We numerically show that the …

Surface concentration of transmission eigenfunctions

YT Chow, Y Deng, H Liu, M Sunkula - Archive for Rational Mechanics and …, 2023 - Springer
The transmission eigenvalue problem is a type of non-elliptic and non-selfadjoint spectral
problem that arises in the wave scattering theory when invisibility/transparency occurs. The …

On vanishing and localizing around corners of electromagnetic transmission resonances

H Diao, H Liu, X Wang, K Yang - Partial Differential Equations and …, 2021 - Springer
We are concerned with the geometric properties of the transmission resonance in
electromagnetic scattering. The transmission eigenvalue problem is a type of non-elliptic …

A novel method for solving the inverse spectral problem with the incomplete data

P Meng, Z Xu, X Wang, W Yin, H Liu - Journal of Computational and …, 2025 - Elsevier
This paper is concerned with an inverse spectral problem of the Dirichlet boundary in a
bounded region. We develop a novel method for determing the unknow objects by using a …

Conformal map** Coordinates Physics-Informed Neural Networks (CoCo-PINNs): learning neural networks for designing neutral inclusions

D Cho, H Yun, J Lee, M Lim - arxiv preprint arxiv:2501.07809, 2025 - arxiv.org
We focus on designing and solving the neutral inclusion problem via neural networks. The
neutral inclusion problem has a long history in the theory of composite materials, and it is …

Electromagnetic interior transmission eigenvalue problem for inhomogeneous media containing obstacles and its applications to near cloaking

X Li, J Li, H Liu, Y Wang - IMA Journal of Applied Mathematics, 2017 - academic.oup.com
This article is concerned with the invisibility cloaking in electromagnetic wave scattering from
a new perspective. We are especially interested in achieving the invisibility cloaking by …

[BOOK][B] Spectral Theory of Localized Resonances and Applications

Y Deng, H Liu - 2024 - Springer
This book is devoted to the spectral theory of localized resonances including surface
plasmon/polariton resonances, atypical resonances, anomalous localized resonances and …

Construction of inclusions with vanishing generalized polarization tensors by imperfect interfaces

D Choi, M Lim - Studies in Applied Mathematics, 2024 - Wiley Online Library
We investigate the problem of planar conductivity inclusion with imperfect interface
conditions. We assume that the inclusion is simply connected. The presence of the inclusion …

Interior Transmission Resonance

Y Deng, H Liu - Spectral Theory of Localized Resonances and …, 2024 - Springer
In this chapter, we consider the interior transmission eigenvalue problem. Our focus is on
justifying that the transmission eigenfunctions form a certain interior resonant modes. In fact …