Spectral Theory of Pseudo-Ergodic Operators

Details Spectral Theory of Pseudo-Ergodic Operators Spectral Theory of Pseudo-Ergodic Operators

2000-08-17

arxiv.org/abs/math/0008136v1

Mathematics

Spectral Theory

22 pages

Scientific paper

10.1007/s002200000352

We define a class of pseudo-ergodic non-self-adjoint Schr\"odinger operators acting in spaces $l^2(X)$ and prove some general theorems about their spectral properties. We then apply these to study the spectrum of a non-self-adjoint Anderson model acting on $l^2(\Z)$, and find the precise condition for 0 to lie in the spectrum of the operator. We also introduce the notion of localized spectrum for such operators.

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