Hilbert space operators with compatible off-diagonal corners
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DOI: 10.1016/j.jfa.2018.04.002
Abstract: Given a complex, separable Hilbert space $\mathcal{H}$, we characterize those operators for which $\| P T (I-P) \| = \| (I-P) T P \|$ for all orthogonal projections $P$ on $\mathcal{H}$. When $\mathcal{H}$ is finite-dimensional,… read more here.
Keywords: space operators; compatible diagonal; space; hilbert space ... See more keywords