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pro vyhledávání: '"Ameur, Yagoub"'
Matrix valued asymmetric truncated Toeplitz operators are compressions of multiplication operators acting between two possibly different model spaces. In this paper, we characterize matrix valued asymmetric truncated Toeplitz operators by using compr
Externí odkaz:
http://arxiv.org/abs/2103.15719
Autor:
Muhammad Ahsan Khan, Ameur Yagoub
Toeplitz matrices are ubiquitous and play important roles across many areas of mathematics. In this paper, we present some algebraic results concerning block Toeplitz matrices with block entries belonging to a commutative algebra $\AA$. The character
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e8a7956b74c661d3cc7a92725e30e4fa
http://arxiv.org/abs/2201.12631
http://arxiv.org/abs/2201.12631
Autor:
Ameur Yagoub
Publikováno v:
Advances in Operator Theory. 5:233-247
This paper is concerned with asymmetric truncated Toeplitz operators, which are compressions of multiplication operators acting between two model spaces. We give necessary and sufficient conditions so that the product of two asymmetric truncated Toep
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3155ec7325b22de56985ad99e8291b28
https://doi.org/10.1007/s43036-019-00014-z
https://doi.org/10.1007/s43036-019-00014-z
Autor:
Mohamed Zarrabi, Ameur Yagoub
Publikováno v:
Operators and Matrices
Operators and Matrices, In press, 12 (3), pp.603-618. ⟨10.7153/oam-2018-12-37⟩
Operators and Matrices, In press, 12 (3), pp.603-618. ⟨10.7153/oam-2018-12-37⟩
International audience; We characterise the one parameter families of truncated Toeplitz operators that are semigroups, uniformly continuous semigroups and $C_0$-semigroups of contractions. We also study their generators.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5b000cde6f74c1a46a642e66bb47d564
https://doi.org/10.7153/oam-2018-12-37
https://doi.org/10.7153/oam-2018-12-37