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An asymmetric Putnam-Fuglede theorem for unbounded operators |
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| Authors: | Jan Stochel |
| Affiliation: | Instytut Matematyki, Uniwersytet Jagiellonski, Kraków, Poland |
| Abstract: | The intertwining relations between cosubnormal and closed hyponormal (resp. cohyponormal and closed subnormal) operators are studied. In particular, an asymmetric Putnam-Fuglede theorem for unbounded operators is proved. |
| Keywords: | Normal operator subnormal operator hyponormal operator intertwining relation |
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