Results 21 to 30 of about 74 (69)

Mixed‐norm estimates via the helicoidal method

open access: yesMathematika, Volume 70, Issue 3, July 2024.
Abstract We prove multiple vector‐valued and mixed‐norm estimates for multilinear operators in Rd$\mathbb {R}^d$, more precisely for multilinear operators Tk$T_k$ associated to a symbol singular along a k$k$‐dimensional space and for multilinear variants of the Hardy‐Littlewood maximal function.
Cristina Benea, Camil Muscalu
wiley   +1 more source

New estimates of Rychkov's universal extension operator for Lipschitz domains and some applications

open access: yesMathematische Nachrichten, Volume 297, Issue 4, Page 1407-1443, April 2024.
Abstract Given a bounded Lipschitz domain Ω⊂Rn$\Omega \subset \mathbb {R}^n$, Rychkov showed that there is a linear extension operator E$\mathcal {E}$ for Ω$\Omega$, which is bounded in Besov and Triebel‐Lizorkin spaces. In this paper, we introduce some new estimates for the extension operator E$\mathcal {E}$ and give some applications.
Ziming Shi, Liding Yao
wiley   +1 more source

Global minimizers of a large class of anisotropic attractive‐repulsive interaction energies in 2D

open access: yesCommunications on Pure and Applied Mathematics, Volume 77, Issue 2, Page 1353-1404, February 2024.
Abstract We study a large family of Riesz‐type singular interaction potentials with anisotropy in two dimensions. Their associated global energy minimizers are given by explicit formulas whose supports are determined by ellipses under certain assumptions.
José A. Carrillo, Ruiwen Shu
wiley   +1 more source

Differentiation of integrals in higher dimensions. [PDF]

open access: yesProc Natl Acad Sci U S A, 2013
Parcet J, Rogers KM.
europepmc   +1 more source

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