The Fuglede theorem and some intertwining relations
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In this paper, we show new versions of the Fuglede theorem in an unbounded setting. A related counterexample is also presented. In the second part of the paper, we give a pair of a closed and a self-adjoint (unbounded) operator which is not intertwined by any (bounded or closed) operator except the zero operator.
Originalsprog | Engelsk |
---|---|
Artikelnummer | 9 |
Tidsskrift | Advances in Operator Theory |
Vol/bind | 6 |
Udgave nummer | 1 |
Sider (fra-til) | 1-8 |
ISSN | 2538-225X |
DOI | |
Status | Udgivet - 2021 |
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© 2020, Tusi Mathematical Research Group (TMRG).
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