Results 51 to 60 of about 62,963 (321)

H-Distributions: An Extension of H-Measures to an Lp-Lq Setting

open access: yesAbstract and Applied Analysis, 2011
We use the continuity of Fourier multiplier operators on Lp to introduce the H-distributions—an extension of H-measures in the Lp framework. We apply the H-distributions to obtain an Lp version of the localisation principle and reprove the Murat Lp-Lp ...
Nenad Antonić, Darko Mitrović
doaj   +1 more source

Unique Performance Considerations for Printable Organic Semiconductor and Perovskite Radiation Detectors: Toward Consensus on Best Practice Evaluation

open access: yesAdvanced Functional Materials, EarlyView.
A lack of standard approaches for testing and reporting the performance of metal halide perovskites and organic semiconductor radiation detectors has resulted in inconsistent interpretation of performance parameters, impeding progress in the field. This Perspective recommends key metrics and experimental details, which are suggested for reporting in ...
Jessie A. Posar   +8 more
wiley   +1 more source

Remarks on the Unimodular Fourier Multipliers on α-Modulation Spaces

open access: yesJournal of Function Spaces, 2014
We study the boundedness properties of the Fourier multiplier operator eiμ(D) on α-modulation spaces Mp,qs,α  (0 ...
Guoping Zhao, Jiecheng Chen, Weichao Guo
doaj   +1 more source

Sharp decay estimates and smoothness for solutions to nonlocal semilinear equations

open access: yes, 2015
We consider semilinear equations of the form p(D)u=F(u), with a locally bounded nonlinearity F(u), and a linear part p(D) given by a Fourier multiplier.
Cappiello, Marco, Nicola, Fabio
core   +1 more source

An Ultra‐Robust Memristor Based on Vertically Aligned Nanocomposite with Highly Defective Vertical Channels for Neuromorphic Computing

open access: yesAdvanced Functional Materials, EarlyView.
An ultra‐robust memristor based on SrTiO3‐CeO2 (S‐C) vertically aligned nanocomposite (VAN) achieving exceptional endurance of 1012 switching cycles via interface engineering. Artificial neural networks (ANNs) integrated with S‐C VAN memristors exhibit high training accuracy across multiple datasets.
Zedong Hu   +12 more
wiley   +1 more source

An Optimal Pufferfish Privacy Mechanism for Temporally Correlated Trajectories

open access: yesIEEE Access, 2018
Temporally correlated trajectories are ubiquitous, and it has been a challenging problem to protect the temporal correlation from being used against users' privacy.
Lu Ou   +4 more
doaj   +1 more source

Ultrahigh Strength with Suppressed Flow Instability at Liquid Helium Temperature via Coherent Nanoprecipitation in a Medium‐Entropy Alloy

open access: yesAdvanced Functional Materials, EarlyView.
It is demonstrated that severe lattice distortion and coherent nanoprecipitates overcome the strength–ductility dilemma and mitigate discontinuous plastic flow (DPF) at 4.2 K. Such microstructural design enhances both thermal and athermal stress components, leading to exceptional mechanical performance.
Min Young Sung   +11 more
wiley   +1 more source

A Spectral Multiplier Theorem associated with a Schr\"odinger Operator [PDF]

open access: yes, 2015
We establish a spectral multiplier theorem associated with a Schr\"odinger operator H=-\Delta+V(x) in \mathbb{R}^3. We present a new approach employing the Born series expansion for the resolvent.
Hong, Younghun
core  

Endpoint bounds for quasiradial Fourier multipliers

open access: yes, 2016
We consider quasiradial Fourier multipliers, i.e. multipliers of the form $m(a(\xi))$ for a class of distance functions $a$. We give a necessary and sufficient condition for the multiplier transformations to be bounded on $L^p$ for a certain range of $p$.
Kim, Jongchon
core   +1 more source

Absolute Dilation of Fourier Multipliers

open access: yesInternational Mathematics Research Notices
Abstract Let $ {\mathcal M}$ be a von Neumann algebra equipped with a normal semifinite faithful (nsf) trace. We say that an operator $ T:{\mathcal M} \to{\mathcal M} $ is absolutely dilatable if there exist another von Neumann algebra $ M $ with an nsf trace, a unital normal trace preserving $\ast $-homomorphism $ J: {\mathcal M} \to M $
Merdy, Christian Le, Zadeh, Safoura
openaire   +2 more sources

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