Results 81 to 90 of about 52,961 (285)

Weighted inequalities for fractional integral operators and linear commutators in the Morrey-type spaces

open access: yesJournal of Inequalities and Applications, 2017
In this paper, we first introduce some new Morrey-type spaces containing generalized Morrey space and weighted Morrey space with two weights as special cases. Then we give the weighted strong type and weak type estimates for fractional integral operators
Hua Wang
doaj   +1 more source

Commutators and pronilpotent subgroups in profinite groups

open access: yes, 2013
Let G be a profinite group in which all pronilpotent subgroups generated by commutators are periodic.
Detomi, Eloisa   +2 more
core   +1 more source

Commutativity of projectors

open access: yesLinear Algebra and its Applications, 2002
Suppose that \(P_1\) and \(P_2\) are (orthogonal) projectors in an \(n\)-dimensional (unitary) complex vector space. There are many papers that give necessary and/or sufficient conditions for the sum \(P_1+P_2\), the difference \(P_1-P_2\) or the product \(P_1P_2\) to be a projector or an orthogonal projector; see, among others, \textit{J.
Jerzy K. Baksalary   +1 more
openaire   +2 more sources

Ghost effect from Boltzmann theory

open access: yesCommunications on Pure and Applied Mathematics, EarlyView.
Abstract Taking place naturally in a gas subject to a given wall temperature distribution, the “ghost effect” exhibits a rare kinetic effect beyond the prediction of classical fluid theory and Fourier law in such a classical problem in physics. As the Knudsen number ε$\varepsilon$ goes to zero, the finite variation of temperature in the bulk is ...
Raffaele Esposito   +3 more
wiley   +1 more source

Endpoint estimates for the commutators of multilinear Calderón-Zygmund operators with Dini type kernels

open access: yesJournal of Inequalities and Applications, 2016
Let T b → $T_{\vec{b}}$ and T Π b $T_{\Pi b}$ be the commutators in the jth entry and iterated commutators of the multilinear Calderón-Zygmund operators, respectively.
Zhengyang Li, Qingying Xue
doaj   +1 more source

A note on commutators of strongly singular Calderón-Zygmund operators

open access: yesOpen Mathematics, 2022
In this article, the authors consider the commutators of strongly singular Calderón-Zygmund operator with Lipschitz functions. A sufficient condition is given for the boundedness of the commutators from Lebesgue spaces Lp(Rn){L}^{p}\left({{\mathbb{R ...
Zhang Pu, Zhu Xiaomeng
doaj   +1 more source

Lieb-Robinson bounds for commutator-bounded operators

open access: yes, 2010
We generalize the Lieb-Robinson theorem to systems whose Hamiltonian is the sum of local operators whose commutators are bounded.Comment: 5 pages, minor editorial ...
Hamma, Alioscia   +3 more
core   +1 more source

Machine Learning Approaches in Soft Matter Molecular Simulation and Materials Characterization: Challenges and Perspectives

open access: yesChemPlusChem, EarlyView.
Rigorous frameworks construction toward the development of science‐based machine learning (ML) schemes: invocation of statistical learning and data‐driven methods within the diverse materials science fields, from materials characterization to molecular modeling utilizing domain knowledge to facilitate fundamental understanding and scientific discovery.
Niki Vergadou, Vassilios Constantoudis
wiley   +1 more source

The Higher Integrability of Commutators of Calderón-Zygmund Singular Integral Operators on Differential Forms

open access: yesJournal of Function Spaces, 2018
In this article, the higher integrability of commutators of Calderón-Zygmund singular integral operators on differential forms is derived. Also, the higher order Poincaré-type inequalities for the commutators acting on the solutions of Dirac-harmonic ...
Jinling Niu, Yuming Xing
doaj   +1 more source

Weighted estimates for multilinear Fourier multipliers

open access: yes, 2013
We prove a H\"{o}rmander type multiplier theorem for multilinear Fourier multipiers with multiple weights.
Li, Kangwei, Sun, Wenchang
core   +1 more source

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