Results 31 to 40 of about 495,262 (315)

A Note on Boundedness of Singular Integral Operators on Function Spaces over Local Fields [PDF]

open access: yesarXiv, 2022
In this article we consider the classical singular integral operator over a local field with rough kernels. We study the boundedness of such an operator on different function spaces by relaxing the smoothness condition on kernels.
arxiv  

A singular integral of the composite operator

open access: yesApplied Mathematics Letters, 2009
We establish the Poincare-type inequalities for the composition of the homotopy operator and the projection operator. We also obtain some estimates for the integral of the composite operator with a singular density.
Shusen Ding, Bing Liu
openaire   +2 more sources

Localization of singular integral operators

open access: yesMathematische Zeitschrift, 1979
This work is a continuation of the paper [1]. Recently, in an attempt to give further meaning to several local theories for one dimensional singular integral operators, the authors defined a general concept of local factorization of matrix functions on a contour F in the complex plane.
Clancey, Kevin, Gohberg, Israel
openaire   +2 more sources

Weighted Endpoint Estimates for Commutators of Singular Integral Operators on Orlicz-Morrey Spaces

open access: yesJournal of Function Spaces, 2019
In this paper, we obtain the weighted endpoint estimates for the commutators of the singular integral operators with the BMO functions and the associated maximal operators on Orlicz-Morrey Spaces.
Jinyun Qi, Hongxia Shi, Wenming Li
doaj   +1 more source

On Weighted Hadamard-Type Singular Integrals and Their Applications

open access: yesAbstract and Applied Analysis, 2007
By means of an expression with a kind of integral operators, some properties of the weighted Hadamard-type singular integrals are revealed. As applications, the solution for certain strongly singular integral equations is discussed and illustrated.
Yong Jia Xu
doaj   +1 more source

The power of microRNA regulation—insights into immunity and metabolism

open access: yesFEBS Letters, EarlyView.
MicroRNAs are emerging as crucial regulators at the intersection of metabolism and immunity. This review examines how miRNAs coordinate glucose and lipid metabolism while simultaneously modulating T‐cell development and immune responses. Moreover, it highlights how cutting‐edge artificial intelligence applications can identify miRNA biomarkers ...
Stefania Oliveto   +2 more
wiley   +1 more source

NanoCMSer: a consensus molecular subtype stratification tool for fresh‐frozen and paraffin‐embedded colorectal cancer samples

open access: yesMolecular Oncology, EarlyView.
Consensus molecular subtypes (CMS1‐4) have been identified to study colorectal cancer heterogeneity and serve as potential biomarkers. In this study, we developed and evaluated NanoCMSer, a NanoString‐based classifier using 55 genes, optimized for FF and FFPE to facilitate the clinical evaluation of CMS subtyping.
Arezo Torang   +10 more
wiley   +1 more source

Φ-Admissible Sublinear Singular Operators and Generalized Orlicz-Morrey Spaces

open access: yesJournal of Function Spaces, 2014
We study the boundedness of Φ-admissible sublinear singular operators on Orlicz-Morrey spaces MΦ,φℝn. These conditions are satisfied by most of the operators in harmonic analysis, such as the Hardy-Littlewood maximal operator and Calderón-Zygmund ...
Javanshir J. Hasanov
doaj   +1 more source

On the spectral theory of singular integral operators [PDF]

open access: yesTransactions of the American Mathematical Society, 1963
A complete spectral representation is given for a class of singular integral operators. The influence of spectral multiplicity is partially taken into account. (T.F.H.)
openaire   +4 more sources

Variable Anisotropic Singular Integral Operators

open access: yesConstructive Approximation, 2023
We introduce the class of variable anisotropic singular integral operators associated to a continuous multi-level ellipsoid cover $ $ of $\mathbb{R}^n$ introduced by Dahmen, Dekel, and Petrushev \cite{ddp}. This is an extension of the classical isotropic singular integral operators on $\mathbb{R}^n$ of arbitrary smoothness and their anisotropic ...
Bownik, Marcin, Li, Baode, Li, Jinxia
openaire   +2 more sources

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