Resolvent estimates for a certain class of Schrödinger operators with exploding potentials |
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Authors: | Matania Ben Artzi |
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Institution: | Department of Mathematics, Technion-Israel Institute of Technology, Haifa 32000, Israel |
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Abstract: | Let be a Schrödinger operator in Rn. Here is an “exploding” radially symmetric potential which is at least C2 monotone nonincreasing and O(r2) as r → ∞. V is a general potential which is short range with respect to VE. In particular, VE 0 leads to the “classical” short-range case (V being an Agmon potential). Let Λ = limr → ∞VE(r) and R(z) = (H ? z)?1, 0 < Im z, Λ < Re z < ∞. It is shown that R(z) can be extended continuously to Im z = 0, except possibly for a discrete subset ?(Λ, ∞), in a suitable operator topology . And L ? L2(Rn) is a weighted L2-space; H is then absolutely continuous over (Λ, ∞), except possibly for a discrete set of eigenvalues. The corresponding eigenfunctions are shown to be rapidly decreasing. |
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