On a theorem of Kac and Gilbert
نویسنده
چکیده
We prove a general operator theoretic result that asserts that many multiplicity two selfadjoint operators have simple singular spectrum. © 2005 Elsevier Inc. All rights reserved.
منابع مشابه
The two parameter quantum groups $U_{r,s}(mathfrak{g})$ associated to generalized Kac-Moody algebra and their equitable presentation
We construct a family of two parameter quantum grou-\ps $U_{r,s}(mathfrak{g})$ associated with a generalized Kac-Moody algebra corresponding to symmetrizable admissible Borcherds Cartan matrix. We also construct the $textbf{A}$-form $U_{textbf{A}}$ and the classical limit of $U_{r,s}(mathfrak{g})$. Furthermore, we display the equitable presentation for a subalgebra $U_{r...
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