The Pseudospectrum of the Zakharov-Shabat System
arXiv:1310.8365
Abstract
We study the pseudospectrum of the non-selfadjoint Zakharov-Shabat system in the semiclassical regime. The pseudospectrum may be defined as the union of the spectra of perturbations of the Zakharov-Shabat system, thus it is relevant to the numerical computation of true eigenvalues.
15 pages, 1 figure