The invariant subspaces of $ S\oplus S^* $
| Autor: | Timotin, Dan |
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| Rok vydání: | 2020 |
| Předmět: | |
| Druh dokumentu: | Working Paper |
| Popis: | Using the tools of Sz.-Nagy--Foias theory of contractions, we describe in detail the invariant subspaces of the operator $ S\oplus S^* $, where $ S $ is the unilateral shift on a Hilbert space. This answers a question of C\^amara and Ross. Comment: 11 pages. Theorem 4.4 corrected |
| Databáze: | arXiv |
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