Results 31 to 40 of about 1,173,022 (231)
A hyperbolic universal operator commuting with a compact operator [PDF]
, 2019 A Hilbert space operator is called universal (in the sense of Rota) if every operator on the Hilbert space is similar to a multiple of the restriction of the universal operator to one of its invariant subspaces.
Cowen, Carl C. +1 more
core +1 more source
Every composition operator is (mean) asymptotically Toeplitz
Journal of Mathematical Analysis and Applications, 2007 J. H. Shapiro
semanticscholar +3 more sources
Partially Isometric Toeplitz Operators [PDF]
Proceedings of the American Mathematical Society, 1965 It has been observed that the only Toeplitz operators that are isometric are those of the form To where q is an inner function on the unit disc (see e.g., [1, Theorem 8, Corollary 3]; the notation and terminology introduced there will be adhered to throughout this note).
Brown, Arlen, Douglas, R. G.
openaire +2 more sources
Toeplitz Operators on the Weighted Pluriharmonic Bergman Space with Radial Symbols
Abstract and Applied Analysis, 2011 We construct an operator R whose restriction onto weighted pluriharmonic Bergman Space bμ2(Bn) is an isometric isomorphism between bμ2(Bn) and l2#. Furthermore, using the operator R we prove that each Toeplitz operator Ta with radial symbols is unitary ...
Zhi Ling Sun, Yu Feng Lu
doaj +1 more source
Toeplitz Operators whose Symbols Are Borel Measures
Journal of Function Spaces, 2021 In this paper, we are concerned with Toeplitz operators whose symbols are complex Borel measures. When a complex Borel measure μ on the unit circle is given, we give a formal definition of a Toeplitz operator Tμ with symbol μ, as an unbounded linear ...
Jaehui Park
doaj +1 more source
Asymmetric truncated Toeplitz operators equal to the zero operator [PDF]
, 2016 Asymmetric truncated Toeplitz operators are compressions of multiplication operators acting between two model spaces. These operators are natural generalizations of truncated Toeplitz operators.
J. Jurasik, Bartosz Lanucha
semanticscholar +1 more source
Abstract and Applied Analysis, 2013 We study some algebraic properties of Toeplitz operator with quasihomogeneous or separately quasihomogeneous symbol on the pluriharmonic Bergman space of the unit ball in ℂn. We determine when the product of two Toeplitz operators with certain separately
Hongyan Guan, Liu Liu, Yufeng Lu
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Properties of two variables Toeplitz type operators
Annales Universitatis Paedagogicae Cracoviensis: Studia Mathematica, 2016 The investigation of properties of generalized Toeplitz operators with respect to the pairs of doubly commuting contractions (the abstract analogue of classical two variable Toeplitz operators) is proceeded. We especially concentrate on the condition of
Elżbieta Król-Klimkowska, Marek Ptak
doaj +1 more source
Essential commutants and characterizations of the Toeplitz algebra [PDF]
Journal of operator theory, 2020 We study the Toeplitz algebra which is generated by Toeplitz operators with bounded symbols on the Fock space Fpα. We show that the Toeplitz algebra coincides with each of the algebras generated by band-dominated, sufficiently localized and weakly ...
Raffael Hagger
semanticscholar +1 more source
Characterizations of dual truncated Toeplitz operators
, 2021 We present an operator equation characterization of a dual truncated Toeplitz (DTT) operator using the compressed shift operator. This characterization is an analogue of the classical characterization of a Toeplitz operator [2] and the more recent ...
Caixing Gu
semanticscholar +1 more source