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Schatten class conditions for functions of Schrödinger operators

Frank, Rupert L. and Pushnitski, Alexander (2019) Schatten class conditions for functions of Schrödinger operators. . (Unpublished)

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We consider the difference f(H_1)−f(H_0), where H_0 = −Δ and H_1 = −Δ+V are the free and the perturbed Schrödinger operators in L^2(R^d), and V is a real-valued short range potential. We give a sharp sufficient condition for this difference to belong to a given Schatten class S_p, depending on the rate of decay of the potential and on the smoothness of f (stated in terms of the membership in a Besov class). In particular, for p > 1 we allow for some unbounded functions f.

Item Type:Report or Paper (Discussion Paper)
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URLURL TypeDescription Paper
Frank, Rupert L.0000-0001-7973-4688
Record Number:CaltechAUTHORS:20190520-133945892
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:95607
Deposited By: Tony Diaz
Deposited On:20 May 2019 20:54
Last Modified:20 May 2019 20:54

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