Intertwining operators between different Hilbert spaces: connection with frames

Abstract

In this paper we generalize a strategy recently proposed by the author concerning intertwining operators. In particular we discuss the possibility of extending our previous results in such a way to construct (almost) isospectral self-adjoint operators living in different Hilbert spaces. Many examples are discussed in details. Many of them arise from the theory of frames in Hilbert spaces, others from the so-called g-frames.

J. Math. Phys., in press

References in corpus (1)

• Vector coherent states and intertwining operators

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