56 citations · 549 across the 34 of their papers we have counts for
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math.CA2017★ 18 cited
The Classical Moment Problem and Generalized Indefinite Strings
Jonathan Eckhardt, Aleksey Kostenko
We show that the classical Hamburger moment problem can be included in the spectral theory of generalized indefinite strings. Namely, we introduce the class of Krein-Langer strings…
math-ph2017★ 9 cited
The Camassa--Holm Equation and The String Density Problem
Jonathan Eckhardt, Aleksey Kostenko, Gerald Teschl
In this paper we review the recent progress in the (indefinite) string density problem and its applications to the Camassa--Holm equation.