Results 81 to 90 of about 463,715 (164)

Operator identities for standard weighted Bergman shift and Toeplitz operators [Elektronisk resurs]

open access: yes, 2013
We prove an operator identity for the shift operator in the scale of standard weighted Bergman spaces in the unit disc. This operator identity is then applied in the context of functional calculus for the shift operator and a characterization of harmonic
Wennman, Aron,   +2 more
core  

The Numerical Range of Toeplitz Operator on the Polydisk

open access: yesAbstract and Applied Analysis, 2009
The numerical range and normality of Toeplitz operator acting on the Bergman space and pluriharmonic Bergman space on the polydisk is investigated in this paper.
Dinggui Gu
doaj   +1 more source

On a weighted Toeplitz operator and its commutant

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2005
We study the structure of a class of weighted Toeplitz operators and obtain a description of the commutant of each operator in this class. We make some progress towards proving that the only operator in the commutant which is not a scalar multiple of the
Vasile Lauric
doaj   +1 more source

On some numerical characteristics of operators

open access: yesArab Journal of Mathematical Sciences, 2015
We investigate some numerical characteristics of Toeplitz operators including the numerical range, maximal numerical range and maximal Berezin set. Further, we establish an inequality for the Berezin number of an arbitrary operator on the Hardy–Hilbert ...
M. Gürdal   +3 more
doaj   +1 more source

On the characterization of Toeplitz operators and fractional derivatives on Bloch-type space

open access: yes四川大学学报. 自然科学版, 2023
We in this paper characterize the boundedness and compactness of a class of Toeplitz operator on the Bloch-type space. In addition, we also give a characterization for the functions in terms of fractional derivative.
JIA Ce   +3 more
doaj  

Schatten Class Toeplitz Operators on the Bergman Space

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2009
We have shown that if the Toeplitz operator Tϕ on the Bergman space La2(𝔻) belongs to the Schatten class Sp,1 ...
Namita Das
doaj   +1 more source

Toeplitz operators and Wiener-Hopf factorisation: an introduction

open access: yesConcrete Operators, 2017
Wiener-Hopf factorisation plays an important role in the theory of Toeplitz operators. We consider here Toeplitz operators in the Hardy spaces Hp of the upper half-plane and we review how their Fredholm properties can be studied in terms of a Wiener-Hopf
Câmara M. Cristina
doaj   +1 more source

Positive Toeplitz operators between doubling Fock spaces

open access: yes四川大学学报. 自然科学版, 2020
In this paper, we characterize the boundedness and compactness of the Toeplitz operator between doubling Fock spaces in terms of averaging functions and t-Berezin transform.
JIAN Shu-Man, WANG Xiao-Feng, XIA Jin
doaj  

Structured Distance to Normality of Dirichlet–Neumann Tridiagonal Toeplitz Matrices

open access: yesAxioms
This paper conducts a rigorous study on the spectral properties and operator-space distances of perturbed Dirichlet–Neumann tridiagonal (PDNT) Toeplitz matrices, with emphasis on their asymptotic behaviors. We establish explicit closed-form solutions for
Zhaolin Jiang   +3 more
doaj   +1 more source

Two-term Szegő theorem for generalised anti-Wick operators [PDF]

open access: yes, 2015
This thesis concerns operators whose Weyl pseudodifferential operator symbol is the convolution of a function that is smooth and of fixed scale with a function that is discontinuous and dilated by a large asymptotic parameter.
Oldfield, JP
core  

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