Results 1 to 10 of about 170 (114)

Skew-symmetric and essentially unitary operators via Berezin symbols [PDF]

open access: yesOpen Mathematics, 2020
We characterize skew-symmetric operators on a reproducing kernel Hilbert space in terms of their Berezin symbols. The solution of some operator equations with skew-symmetric operators is studied in terms of Berezin symbols.
Najla Altwaijry   +2 more
exaly   +3 more sources

Multiplication Operator with BMO Symbols and Berezin Transform [PDF]

open access: yesJournal of Function Spaces, 2015
We discuss multiplication operator with a special symbol on the weighted Bergman space of the unit ball. We give the necessary and sufficient conditions for the compactness of multiplication operator on the weighted Bergman space of the unit ball.
Xue Feng   +4 more
doaj   +2 more sources

Berezin Symbols and Spectral Measures of Representation Operators [PDF]

open access: yesComplex Analysis and Operator Theory, 2021
Some typos ...
Benjamin Cahen
exaly   +3 more sources

Berezin Symbols on Lie Groups [PDF]

open access: yesTrends in Mathematics, 2018
In this paper we present a general framework for Berezin covariant symbols, and we discuss a few basic properties of the corresponding symbol map, with emphasis on its injectivity in connection with some problems in representation theory of nilpotent Lie groups.
Benjamin Cahen   +2 more
exaly   +3 more sources

Toeplitz operators with BMO symbols and the Berezin transform [PDF]

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2003
We prove that the boundedness and compactness of the Toeplitz operator on the Bergman space with a BMO1 symbol is completely determined by the boundary behaviour of its Berezin transform. This result extends the known results in the cases when the symbol
Nina Zorboska
doaj   +3 more sources

Some results related with statistical convergence and Berezin symbols

open access: yesJournal of Mathematical Analysis and Applications, 2004
A functional Hilbert space is a Hilbert space \(\mathcal{H}\) of complex-valued functions on some set \(\Omega\) such that the evaluation functional \(f \to f(\lambda)\) is continuous for each \(\lambda \in \Omega\). Moreover, for each \(\lambda \in \Omega\) there exists a unique function \(k_{\lambda} \in \mathcal{H}\) such that \(f(\lambda) = (f, k_{\
Serpil Pehlivan
exaly   +4 more sources

Reproducing Kernels and Berezin Symbols Techniques in Various Questions of Operator Theory

open access: yesComplex Analysis and Operator Theory, 2012
Given a functional Hilbert space, the author of the paper under review studies various problems with the help of the corresponding Berezin transform. The notions of Berezin number and Berezin set are introduced. The techniques are applied to the study of invariant subspaces and a uniqueness theorem related to the distance function is obtained.
M T Karaev
exaly   +6 more sources

On some problems related to Berezin symbols

open access: yesComptes Rendus Mathematique, 2005
The following problem was formulated by Zorboska [Proc. Amer. Math. Soc. 131 (2003) 793–800]: It is not known if the Berezin symbols of a bounded operator on the Bergman space L a 2
exaly   +5 more sources

Berezin symbols and some problems on the Dirichlet space

open access: yesIndian Journal of Pure and Applied Mathematics
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Ulas Yamancı
exaly   +4 more sources

Description of invariant subspaces in terms of Berezin symbols

open access: yesTurkish Journal of Mathematics, 2018
Summary: We consider the stretching operator \( T_{w}f) (z) =f(wz)\) and the multiple shift operator \(S^{n}f=z^{n}f\) on the Hardy spaces \( H^{p}(\mathbb{D})\) (\( 1\leq ...
exaly   +5 more sources

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