[HTML][HTML] Spectral properties of a class of operator functions with applications to the Moore-Gibson-Thompson equation with memory
C Engström, A Torshage - Journal of Mathematical Analysis and …, 2024 - Elsevier
In this study, we present spectral enclosures and accumulation of eigenvalues of a class of
operator functions with several unbounded operator coefficients. Our findings have direct …
operator functions with several unbounded operator coefficients. Our findings have direct …
Numerical computation of eigenvalues in spectral gaps of Schrödinger operators
S Aljawi - Journal of Computational and Applied Mathematics, 2022 - Elsevier
An algorithm is presented for calculating eigenvalues lying in the spectral gaps of the
essential spectrum of Schrödinger operators. The method is applicable to the scalar and …
essential spectrum of Schrödinger operators. The method is applicable to the scalar and …
Numerical analysis of the spectra of dissipative Schrodinger-type and related operators
S Aljawi - 2022 - orca.cardiff.ac.uk
Spectral problems of band-gap structure appear in various applications such as elasticity
theory, electromagnetic waves, and photonic crystals. In the numerical approximation of …
theory, electromagnetic waves, and photonic crystals. In the numerical approximation of …