On the absolutely continuous spectrum of generalized indefinite strings

We investigate absolutely continuous spectrum of generalized indefinite strings. By following an approach of Deift and Killip, we establish stability of the absolutely continuous spectra of two model examples of generalized indefinite strings under rather wide perturbations. In particular, one of th...

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Bibliographic Details
Main Authors: Jonathan Eckhardt, Aleksey Kostenko
Format: Default Article
Published: 2021
Subjects:
math.SP
math-ph
math.CA
math.MP
34L05, 34B07 (Primary), 34L25, 37K15 (Secondary)
Mathematical Physics
Atomic, Molecular, Nuclear, Particle and Plasma Physics
absolutely continuous spectrum
generalized indefinite strings
Online Access:https://hdl.handle.net/2134/14675901.v1
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