Spectra of Weighted Composition Operators with Quadratic Symbols

Autor: Doctor Jessica, Hodges Timothy, Kaschner Scott, McFarland Alexander, Thompson Derek
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: Concrete Operators, Vol 9, Iss 1, Pp 75-85 (2022)
Druh dokumentu: article
ISSN: 2299-3282
DOI: 10.1515/conop-2022-0129
Popis: Previously, spectra of certain weighted composition operators W ѱ, φ on H2 were determined under one of two hypotheses: either φ converges under iteration to the Denjoy-Wolff point uniformly on all of 𝔻 rather than simply on compact subsets, or φ is “essentially linear fractional.” We show that if φ is a quadratic self-map of 𝔻 of parabolic type, then the spectrum of Wѱ, φ can be found when these maps exhibit both of the aforementioned properties, and we determine which symbols do so.
Databáze: Directory of Open Access Journals