56 citations · 549 across the 34 of their papers we have counts for
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Trace formulas and continuous dependence of spectra for the periodic conservative Camassa-Holm flow
Jonathan Eckhardt, Aleksey Kostenko, Noema Nicolussi
This article is concerned with the isospectral problem \[ -f'' + \frac{1}{4} f = zωf + z^2 \upsilon f \] for the periodic conservative Camassa-Holm flow, where is a periodic re…
On the absolutely continuous spectrum of generalized indefinite strings II
Jonathan Eckhardt, Aleksey Kostenko, Teo Kukuljan
We continue to investigate absolutely continuous spectrum of generalized indefinite strings. By following an approach of Deift and Killip, we establish stability of the absolutely…
On the absolutely continuous spectrum of generalized indefinite strings
Jonathan Eckhardt, Aleksey Kostenko
We investigate absolutely continuous spectrum of generalized indefinite strings. By following an approach of Deift and Killip, we establish stability of the absolutely continuous s…