On the number of eigenvalues of a model operator on a one-dimensional lattice

DOI10.17223/19988621/78/2zbMath1506.81027OpenAlexW4320807831MaRDI QIDQ5873948

A. M. Khurramov, I. N. Bozorov, Azam A. Imomov

Publication date: 10 February 2023

Published in: Vestnik Tomskogo gosudarstvennogo universiteta. Matematika i mekhanika (Search for Journal in Brave)

Full work available at URL: http://mathnet.ru/eng/vtgu934

zbMATH Keywords

eigenvalueSchrödinger operatordispersion relationsinvariant subspacesessential spectrumone-dimensional latticeasymptotics for Fredholm determinantHamiltonian of system of two particlesunitarily equivalent operator

Mathematics Subject Classification ID

Eigenvalue problems for linear operators (47A75) Invariant subspaces of linear operators (47A15) Selfadjoint operator theory in quantum theory, including spectral analysis (81Q10)

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