Results 61 to 70 of about 956 (81)

Factorization of some triangular matrix functions and its applications

, 2015
We consider defined on the real line R matrix functions with monomial terms of the form ceiλx on the main diagonal and one row, and with zero entries elsewhere.
Y. Karlovich, J. Loreto-Hernández, I. Spitkovsky   +2 more
semanticscholar   +1 more source

Commuting of block dual Toeplitz operators

, 2014
In this paper, we characterize the commuting (semi-commuting) and the essentially commuting (semi-commuting) of block dual Toeplitz operators. Mathematics subject classification (2010): 47B35, 47B47.
Bo Zhang, Yufeng Lu
semanticscholar   +1 more source

Hyponormality on a weighted Bergman space of an annulus with a general harmonic symbol

Open Mathematics
In this work we consider the hyponormality of Toeplitz operators on the Bergman space of the annulus with a logarithmic weight. We give necessary conditions when the symbol is of the form φ+ψ̄ $\varphi +\bar{\psi }$ where both φ and ψ are analytic on ...
Sadraoui Houcine, Halouani Borhen
doaj   +1 more source

Commutants of the sum of two quasihomogeneous Toeplitz operators

Concrete Operators
A major open question in the theory of Toeplitz operator on the Bergman space of the unit disk of the complex plane is the complete characterization of the set of all Toeplitz operators that commute with a given operator.
Bouhali Aissa, Louhichi Issam
doaj   +1 more source

Toeplitz-type operators in weighted Morrey spaces

, 2013
Let Tj,1 and Tj,2 be singular integrals with non-smooth kernels, which are associated with an approximation of identity or ±I (I is the identity operator). Denote the Toeplitz-type operator by Tb=∑j=1NTj,1MbTj,2, where Mbf(x)=b(x)f(x). In this paper, the
Peizhu Xie, G. Cao
semanticscholar   +1 more source

Iwanami Studies in Advanced Mathematics Hilbert Spaces of Analytic Functions Takahiko Nakazi Professor (Emeritus) of Hokkaido University Mathematical Subject Classification (2000): Primary 46E22; Secondary 47A15, 47B35, 60G10

Iwanami Studies in Advanced Mathematics Hilbert Spaces of Analytic Functions Takahiko Nakazi Professor (Emeritus) of Hokkaido University Mathematical Subject Classification (2000): Primary 46E22; Secondary 47A15, 47B35, 60G10
identifier:北海学園大学学園論集 identifier:03857271 identifier:http://hokuga.hgu.jp/dspace/handle/123456789 ...
openaire  

Algebraic properties of truncated Toeplitz operators

, 2007
D. Sarason
semanticscholar   +1 more source

Iwanami Studies in Advanced Mathematics　Hilbert Spaces of Analytic Functions (2) 　Takahiko Nakazi Professor (Emeritus) of Hokkaido University Mathematical Subject Classification (2000): Primary 46E22; Secondary 47A15, 47B35, 60G10　First published in 2009 in Japanese as Seisoku Kansu no nasu Hiruberuto kukan by Iwanami Shoten, Publishers, Tokyo.

Iwanami Studies in Advanced Mathematics　Hilbert Spaces of Analytic Functions (2) 　Takahiko Nakazi Professor (Emeritus) of Hokkaido University Mathematical Subject Classification (2000): Primary 46E22; Secondary 47A15, 47B35, 60G10　First published in 2009 in Japanese as Seisoku Kansu no nasu Hiruberuto kukan by Iwanami Shoten, Publishers, Tokyo.
identifier:北海学園大学学園論集 identifier:03857271 identifier:http://hokuga.hgu.jp/dspace/handle/123456789 ...
openaire  

A Riemann-Hilbert problem with a vanishing coefficient and applications to Toeplitz operators

Concrete Operators, 2013
Perälä A., Virtanen J. A., Wolf L.
doaj   +1 more source

Hyponormal Toeplitz operators on the weighted Bergman spaces

, 2012
I. Hwang, Jongrak Lee
semanticscholar   +1 more source