Spectral Theory of Pseudo-ergodic Operators
Spectral Theory of Pseudo-ergodic Operators
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伪遍历算子的谱论
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发表时间:
2001
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We define a class of pseudo-ergodic non-self-adjoint Schrödinger 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.