The invariant subspaces of S ⊕ S*
Using the tools of Sz.-Nagy–Foias theory of contractions, we describe in detail the invariant subspaces of the operator S ⊕ S*, where S is the unilateral shift on a Hilbert space. This answers a question of Câmara and Ross.
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| Format: | Article |
| Language: | English |
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De Gruyter
2020-07-01
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| Series: | Concrete Operators |
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| Online Access: | https://doi.org/10.1515/conop-2020-0101 |