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A Schrödinger random operator with semimartingale potential

  • Jonathan J. Gutierrez-Pavón EMAIL logo und Carlos G. Pacheco
Veröffentlicht/Copyright: 1. Juni 2023
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Abstract

We study a Schrödinger random operator where the potential is in terms of a continuous semimartingale. Our model is a generalization of the well-known case where the potential is the white-noise. Our approach is to analyze the random operator by means of its bilinear form. This allows us to construct an inverse operator using an explicit Green kernel. To characterize such homogeneous solutions we use certain stochastic equations in terms of stochastic integrals with respect to the semimartingale. An important tool that we use is the multi-dimensional Itô formula. Also, one important corollary of our results is that the operator has a discrete spectrum.

MSC 2020: 60K37; 60H25

Communicated by Stanislav Molchanov


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Received: 2022-03-02
Accepted: 2022-08-26
Published Online: 2023-06-01
Published in Print: 2023-09-01

© 2023 Walter de Gruyter GmbH, Berlin/Boston

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