Mathematics – Spectral Theory
Scientific paper
2011-11-02
Mathematics
Spectral Theory
23 pages
Scientific paper
We provide a detailed description of the model Hilbert space $L^2(\bbR; d\Sigma; \cK)$, were $\cK$ represents a complex, separable Hilbert space, and $\Sigma$ denotes a bounded operator-valued measure. In particular, we show that several alternative approaches to such a construction in the literature are equivalent. These spaces are of fundamental importance in the context of perturbation theory of self-adjoint extensions of symmetric operators, and the spectral theory of ordinary differential operators with operator-valued coefficients.
Gesztesy Fritz
Weikard Rudi
Zinchenko Maxim
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