Results 41 to 50 of about 498,404 (212)

Weighted BMO Estimates for Toeplitz Operators on Weighted Lebesgue Spaces

Journal of Function Spaces, 2015
The authors establish the weighted BMO estimates for a class of Toeplitz operators related to strongly singular Calderón-Zygmund operators on weighted Lebesgue spaces.
Yan Lin, Mengmeng Zhang
doaj   +1 more source

ASYMPTOTIC TORSION AND TOEPLITZ OPERATORS [PDF]

Journal of the Institute of Mathematics of Jussieu, 2015
We use Toeplitz operators to evaluate the leading term in the asymptotics of the analytic torsion forms associated with a family of flat vector bundles$F_{p}$. For$p\in \mathbf{N}$, the flat vector bundle$F_{p}$is the direct image of$L^{p}$, where$L$is a holomorphic positive line bundle on the fibres of a flat fibration by compact Kähler manifolds. The
Bismut, Jean-Michel, Ma, Xiaonan, Zhang, Weiping   +2 more
openaire   +1 more source

Analytic Berezin–Toeplitz operators [PDF]

Mathematische Zeitschrift, 2021
We introduce new tools for analytic microlocal analysis on Kähler manifolds. As an application, we prove that the space of Berezin-Toeplitz operators with analytic contravariant symbol is an algebra. We also give a short proof of the Bergman kernel asymptotics up to an exponentially small error.
openaire   +2 more sources

Active Electromagnetic Interference Suppression for MRI and Proton Resonance Frequency Shift Thermometry During MRI‐Guided Microwave Ablation

Magnetic Resonance in Medicine, Volume 96, Issue 4, Page 1572-1588, October 2026.
ABSTRACT Purpose To develop a software‐based active electromagnetic interference (EMI) suppression (AES) framework on whole‐body multi‐channel MRI systems for reliable MRI and MR thermometry during MRI‐guided microwave ablation (MWA). Methods In addition to primary imaging coils, an unloaded standard body array coil was positioned outside the imaging ...
Qing Dai, Jason Chiang, Shu‐Fu Shih, Wenqi Zhou, David S. K. Lu, Holden H. Wu   +5 more
wiley   +1 more source

Consequences of universality among Toeplitz operators

, 2015
The Invariant Subspace Problem for Hilbert spaces is a long-standing question and the use of universal operators in the sense of Rota has been one tool for studying the problem.
Gallardo Gutiérrez, Eva Antonia, Cowen, Carl C.   +1 more
core   +1 more source

Skew-Commuting Toeplitz Operators and Dual Toeplitz Operators on Bergman Spaces

Mathematics
We study the skew-commutativity of Toeplitz operators and dual Toeplitz operators on the Bergman space of the unit disk. For bounded harmonic symbols, we characterize when two Toeplitz operators are skew-commuting. For general bounded measurable symbols,
Caochuan Ma, Tong Guan, Jianxiang Dong
doaj   +1 more source

Fine Spectra of Symmetric Toeplitz Operators

Abstract and Applied Analysis, 2012
The fine spectra of 2-banded and 3-banded infinite Toeplitz matrices were examined by several authors. The fine spectra of n-banded triangular Toeplitz matrices and tridiagonal symmetric matrices were computed in the following papers: Altun, “On the fine
Muhammed Altun
doaj   +1 more source

Dual Toeplitz Operators on the Orthogonal Complement of the Fock–Sobolev Space

Journal of Mathematics, 2023
In this paper, we consider the dual Toeplitz operators on the orthogonal complement of the Fock–Sobolev space and characterize their boundedness and compactness.
Li He, Biqian Wu
doaj   +1 more source

Analysis of Eigenvalue Clustering Leads to Optimal Scaling in Numerical Radiative Transfer

Numerical Linear Algebra with Applications, Volume 33, Issue 5, October 2026.
ABSTRACT We consider a multidimensional polychromatic radiative transfer (RT) problem, accounting for scattering processes in a general form, that is, anisotropic (dipole) scattering with partial frequency redistribution. Given a discrete ordinates (SN$$ {S}_N $$) discretization, we report the corresponding matrix structures, depending on the model and
Pietro Benedusi, Simone Riva, Luca Belluzzi, Stefano Serra‐Capizzano   +3 more
wiley   +1 more source

Toeplitz Operators, Pseudo-Homogeneous Symbols, and Moment Maps on the Complex Projective Space

Journal of Function Spaces, 2017
Following previous works for the unit ball due to Nikolai Vasilevski, we define quasi-radial pseudo-homogeneous symbols on the projective space and obtain the corresponding commutativity results for Toeplitz operators. A geometric interpretation of these
Miguel Antonio Morales-Ramos, Raul Quiroga-Barranco, Armando Sanchez-Nungaray   +2 more
doaj   +1 more source