@article{Zhang2023, 
author = {Yalin Zhang and Jia Zhao},
title = {The distribution of exterior transmission eigenvalues for spherically stratified media},
year = {2023},
journal = {AIMS Mathematics},
volume = {8},
number = {4},
pages = {9647-9670},
keywords = {inverse scattering, exterior transmission eigenvalues, number, distribution, spectral theory},
url = {https://www.sciopen.com/article/10.3934/math.2023487},
doi = {10.3934/math.2023487},
abstract = {The exterior transmission eigenvalues corresponding to spherical symmetry media and spherically symmetric eigenfunctions are considered. Under various coefficient conditions, we give the number and the asymptotic distribution (described by the subscript numbers) of these eigenvalues in the complex plane.}
}