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- W4366388230 abstract "In this paper, we study Brownian-type operators, which are upper triangular $2times 2$ block matrix operators with entries satisfying some algebraic constraints. We establish a lifting theorem stating that any Brownian-type operator with subnormal $(2,2)$ entry lifts to a Brownian-type operator with normal $(2,2)$ entry, where lifting is understood in the sense of extending entries of the block matrices representing the operators in question. The spectral inclusion and the filling in holes theorems are obtained for such operators." @default.
- W4366388230 created "2023-04-21" @default.
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- W4366388230 date "2023-04-16" @default.
- W4366388230 modified "2023-09-25" @default.
- W4366388230 title "Lifting Brownian-type operators with subnormal entry" @default.
- W4366388230 doi "https://doi.org/10.48550/arxiv.2304.07968" @default.
- W4366388230 hasPublicationYear "2023" @default.
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