辐射树的奇异谱
Singular spectrum for radial trees
摘要:
我们证明了几个结果表明,绝对连续谱的拉普拉斯径向树是一个罕见的事件。特别是,我们表明,度量树无界边缘有纯奇异谱和一般(在Baire的意义上)径向树有纯奇异连续谱。
英文摘要:
We prove several results showing that absolutely continuous spectrum for the Laplacian on radial trees is a rare event. In particular, we show that metric trees with unbounded edges have purely singular spectrum and that generically (in the sense of Baire) radial trees have purely singular continuous spectrum.
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