Intertwining operators between different Hilbert spaces: connection with frames
Mathematical Physics
2015-05-13 v1 math.MP
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.
Cite
@article{arxiv.0904.0203,
title = {Intertwining operators between different Hilbert spaces: connection with frames},
author = {F. Bagarello},
journal= {arXiv preprint arXiv:0904.0203},
year = {2015}
}
Comments
J. Math. Phys., in press