| dc.contributor.author | Gul, Ugur | |
| dc.date.accessioned | 2019-12-16T09:40:01Z | |
| dc.date.available | 2019-12-16T09:40:01Z | |
| dc.date.issued | 2013 | |
| dc.identifier.issn | 1846-3886 | |
| dc.identifier.uri | https://doi.org/10.7153/oam-07-52 | |
| dc.identifier.uri | http://hdl.handle.net/11655/19783 | |
| dc.description.abstract | In this paper we study the essential spectra of a class of composition operators on the Hilbert-Hardy space of the hi-disc which is called "quasi-parabolic" and whose one variable analogue was studied in [2]. As in [2], quasi-parabolic composition operators on the Hilbert-Hardy space of the hi-disc are written as a linear combination of Toeplitz operators and Fourier multipliers. The C*-algebra generated by Toeplitz operators and Fourier multipliers on the Hilbert-Hardy space of the bi-disc is written as the tensor product of the similar C*-algebra in one variable with itself. As a result we find a nontrivial set consisting of spiral curves lying inside the essential spectra of quasi-parabolic composition operators. | |
| dc.language.iso | en | |
| dc.publisher | Element | |
| dc.relation.isversionof | 10.7153/oam-07-52 | |
| dc.rights | info:eu-repo/semantics/openAccess | |
| dc.subject | Mathematics | |
| dc.title | Essential Spectra Of Quasi-Parabolic Composition Operators On Hardy Spaces Of The Poly-Disc | |
| dc.type | info:eu-repo/semantics/article | |
| dc.type | info:eu-repo/semantics/publishedVersion | |
| dc.relation.journal | Operators And Matrices | |
| dc.contributor.department | Matematik | |
| dc.identifier.volume | 7 | |
| dc.identifier.issue | 4 | |
| dc.identifier.startpage | 927 | |
| dc.identifier.endpage | 946 | |
| dc.description.index | WoS | |
