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  • On the absolutely continuous spectrum of generalized indefinite strings II
    Eckhardt, Jonathan ; Kostenko, Aleksej Sergejevič, 1980- ; Kukuljan, Teo
    We continue to investigate the 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 more model examples of generalized indefinite strings under rather wide perturbations. In particular, one of these results allows us to prove that the absolutely continuous spectrum of the isospectral problem associated with the two-component Camassa-Holm system in a certain dispersive regime is essentially supported on the set ▫$(−\infty, −1/2] \cup [1/2, \infty)$▫.
    Source: Israel journal of mathematics. - ISSN 0021-2172 (Vol. 250, iss. 1, Oct. 2022, str. 307-344)
    Type of material - article, component part ; adult, serious
    Publish date - 2022
    Language - english
    COBISS.SI-ID - 171959043

source: Israel journal of mathematics. - ISSN 0021-2172 (Vol. 250, iss. 1, Oct. 2022, str. 307-344)

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