Results 101 to 110 of about 1,173,022 (231)

More subnormal Toeplitz operators.

open access: yesJournal für die reine und angewandte Mathematik (Crelles Journal), 1986
In an earlier paper, J. J. Long and the author presented a subnormal Toeplitz operator that is neither normal nor analytic. It was constructed using the conformal map \(\psi\) of the disk onto the interior of the ellipse with vertices \(\pm i(1+\alpha)\) passing through \(\pm (1-\alpha)\) where ...
openaire   +1 more source

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 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

Asymptotic Toeplitz Operators [PDF]

open access: yesTransactions of the American Mathematical Society, 1982
Barria, Jose, Halmos, P. R.
openaire   +2 more sources

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

On Calder�n-Toeplitz operators

open access: yesMonatshefte f�r Mathematik, 1993
Let \(\psi\in L^ 2(\mathbb{R}^ d)\) be an admissible wavelet, \(\psi_ \xi(x)= t^{-d/2} \psi\Bigl({x-v\over t}\Bigr)\), \(\xi= (v,t)\), \(G\) the ``\(ax+ b\)''-group, i.e. \(G=\{\xi= (v,t): v\in \mathbb{R}^ d, t>0\}\), \(d\xi= t^{d-1}dv dt\) the left invariant measure on \(G\).
openaire   +1 more source

Some Bounds on \(\ell_p\) Matrix and \(\ell_p\) Operator Norms of Almost Circulant, Cauchy-Toeplitz and Cauchy-Hankel Matrices

open access: yes, 2002
Let Cn, Tn and Hn denote almost circulant, Cauchy-ToeplitZ and Cauchy-Hankel matrices, respectively. We find some upper bounds for \(\ell_p\) matrix norm and \(\ell_p\) operator norm of this matrices. Moreover, we give some results for Kronecker products
Süleyman Solak, D. Bozkurt
semanticscholar   +1 more source

Hankel and Toeplitz Determinants for q-Starlike Functions Involving a q-Analog Integral Operator and q-Exponential Function

open access: yesJournal of Function Spaces
This article investigates the upper bounds of the second Hankel and Toeplitz determinants for a family of q-starlike functions defined by a q-analog integral operator, which is a more general form of the q-Srivastava-Attiya operator, and the q ...
Sarem H. Hadi   +2 more
doaj   +1 more source

Restriction of Toeplitz Operators on Their Reducing Subspaces

open access: yesJournal of Function Spaces, 2017
We study the restrictions of analytic Toeplitz operator on its minimal reducing subspaces for the unit disc and construct their models on slit domains. Furthermore, it is shown that Tzn is similar to the sum of n copies of the Bergman shift.
Anjian Xu, Yang Zou
doaj   +1 more source

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

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