Weighted shifts on directed trees with one branching vertex: \(n\)-contractivity and hyponormality

MaRDI QIDQ824103

George R. Exner, Mi Ryeong Lee, Il Bong Jung

Publication date: 14 December 2021

Published in: Osaka Journal of Mathematics (Search for Journal in Brave)

Full work available at URL: https://projecteuclid.org/journals/osaka-journal-of-mathematics/volume-58/issue-4/Weighted-shifts-on-directed-trees-with-one-branching-vertex/5242ojm.full

Mathematics Subject Classification ID

Subnormal operators, hyponormal operators, etc. (47B20) Linear operators on special spaces (weighted shifts, operators on sequence spaces, etc.) (47B37) Directed graphs (digraphs), tournaments (05C20)

Related Items (1)

Weighted shifts on directed trees with one branching vertex: between quasinormality and paranormality

Cites Work

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• A hyponormal weighted shift on a directed tree whose square has trivial domain
• $k$-hyponormality and $n$-contractivity for Agler-type shifts

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