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19972008
most citedOn the existence of solutions to the operator Riccati equation and the tanΘtheorem

30 citations · 40 across the 7 of their papers we have counts for

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Showing 2008Show all

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math.SP2008★ 3 cited

Essential Closures and AC Spectra for Reflectionless CMV, Jacobi, and Schrödinger Operators Revisited

Fritz Gesztesy, Konstantin A. Makarov, Maxim Zinchenko

We provide a concise, yet fairly complete discussion of the concept of essential closures of subsets of the real axis and their intimate connection with the topological support of…