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math.SP2024
Modified Jost solutions of Schrödinger operators with locally potentials
Milivoje Lukić, Xingya Wang
We study Jost solutions of Schrödinger operators with potentials which decay with respect to a local Sobolev norm; in particular, we generalize to this setting the results…
math.SP2024
On point spectrum of Jacobi matrices generated by iterations of quadratic polynomials
Benjamin Eichinger, Milivoje Lukić, Peter Yuditskii
In general, point spectrum of an almost periodic Jacobi matrix can depend on the element of the hull. In this paper, we study the hull of the limit-periodic Jacobi matrix correspon…