Results 11 to 20 of about 603 (182)

Coil Sketching for Fast and Efficient 4D Lung MRI Reconstruction. [PDF]

open access: yesMagn Reson Med
ABSTRACT Purpose To develop and evaluate a memory‐efficient and accelerated reconstruction framework for respiratory‐resolved 4D lung MRI using coil sketching and Toeplitz approximation, enabling high‐quality motion‐compensated low‐rank (MoCo‐LR) reconstructions on clinically accessible GPU hardware.
Plummer JW   +7 more
europepmc   +2 more sources

Commuting Quasihomogeneous Toeplitz Operator and Hankel Operator on Weighted Bergman Space

open access: yesAbstract and Applied Analysis, 2013
We characterize the commuting Toeplitz operator and Hankel operator with quasihomogeneous symbols. Also, we use it to show the necessary and sufficient conditions for commuting Toeplitz operator and Hankel operator with ordinary functions.
Jun Yang
doaj   +1 more source

Generalized Crofoot transform and applications

open access: yesConcrete Operators, 2023
Matrix-valued asymmetric truncated Toeplitz operators are compressions of multiplication operators acting between two model spaces. These are the generalization of matrix-valued truncated Toeplitz operators. In this article, we describe symbols of matrix-
Khan Rewayat, Farooq Aamir
doaj   +1 more source

Invertibility and Fredholm Property of Fock Toeplitz Operators

open access: yesMathematics, 2023
We characterize some necessary and sufficient conditions of invertible Toeplitz operators acting on the Fock space. In particular, we study the Fredholm properties of Toeplitz operators with BMO1 symbols, where their Berezin transforms are bounded ...
Chunxu Xu, Tao Yu
doaj   +1 more source

Toeplitz Operators on the Weighted Pluriharmonic Bergman Space with Radial Symbols

open access: yesAbstract 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

Algebraic Properties of Quasihomogeneous and Separately Quasihomogeneous Toeplitz Operators on the Pluriharmonic Bergman Space

open access: yesAbstract 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
doaj   +1 more source

Toeplitz Operators whose Symbols Are Borel Measures

open access: yesJournal 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

Berezin-Toeplitz Quantization for Compact Kähler Manifolds. A Review of Results

open access: yesAdvances in Mathematical Physics, 2010
This article is a review on Berezin-Toeplitz operator and Berezin-Toeplitz deformation quantization for compact quantizable Kähler manifolds. The basic objects, concepts, and results are given.
Martin Schlichenmaier
doaj   +1 more source

Properties of two variables Toeplitz type operators

open access: yesAnnales 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

Toeplitz Operators with Quasihomogeneous Symbols on the Bergman Space of the Unit Ball

open access: yesJournal of Function Spaces and Applications, 2012
We consider when the product of two Toeplitz operators with some quasihomogeneous symbols on the Bergman space of the unit ball equals a Toeplitz operator with quasihomogeneous symbols.
Bo Zhang, Yufeng Lu
doaj   +1 more source

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