A Schrodinger random operator with semimartingale potential

被引:0
|
作者
Gutierrez-Pavon, Jonathan J. [1 ]
Pacheco, Carlos G. [2 ]
机构
[1] Univ Costa Rica, Dept Math, Ciudad Univ Rodrigo Facio, San Jose, Costa Rica
[2] CINVESTAV, Dept Math, Ave IPN 2508, Mexico City 07360, Mexico
关键词
Schrodinger random operator; Green kernel; bilinear forms;
D O I
10.1515/rose-2023-2008
中图分类号
O21 [概率论与数理统计]; C8 [统计学];
学科分类号
020208 ; 070103 ; 0714 ;
摘要
We study a Schrodinger 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 Ito formula. Also, one important corollary of our results is that the operator has a discrete spectrum.
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页码:217 / 224
页数:8
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