Results 111 to 120 of about 5,011,031 (372)

θ-Summation and Hardy Spaces

Journal of Approximation Theory, 2000
\textit{P. L. Butzer} and \textit{R. J. Nessel} [see ``Fourier analysis and approximation. Vol. 1: One-dimensional theory'' (1971; Zbl 0217.42603)] introduced the general method of summability, using a singular integral of the Fourier transform of a function \(\theta\), called \(\theta\)-summability.
openaire   +3 more sources

“Basic human things”: Investigating vehicle residents' continually fractured (information) landscapes

Journal of the Association for Information Science and Technology, EarlyView.
Abstract This ethnographic study explores vehicle residents' information practices in the United States (US). Vehicle residents are people whose primary means of housing is a vehicle. This work builds on previous research encompassing transitions and fractured (information) landscapes. Using fractured information landscapes as the theoretical framework,
Kaitlin E. Montague
wiley   +1 more source

Spectrum of Compact Weighted Composition Operators on the Weighted Hardy Space in the Unit Ball

Journal of Inequalities and Applications, 2007
Let BN be the unit ball in the N-dimensional complex space, for ψ, a holomorphic function in BN, and ϕ, a holomorphic map from BN into itself, the weighted composition operator on the weighted Hardy space H2(β,BN) is given by (Cψ,ϕ)f=ψ ...
Cheng Yuan, Ze-Hua Zhou
doaj   +1 more source

The visual, the textual, and the one‐dimensional: An exploration of the visual elements of bibliographic classification schemes

Journal of the Association for Information Science and Technology, EarlyView.
Abstract Classification schemes are a key way of organizing bibliographic knowledge, yet the way that classification schemes communicate their information to classifiers receives little attention. This article takes a novel approach by exploring the visual aspects contained within classification schemes.
Deborah Lee
wiley   +1 more source

New Hardy spaces of Musielak-Orlicz type and boundedness of sublinear operators

, 2013
We introduce a new class of Hardy spaces $H^{\varphi(\cdot,\cdot)}(\mathbb R^n)$, called Hardy spaces of Musielak-Orlicz type, which generalize the Hardy-Orlicz spaces of Janson and the weighted Hardy spaces of Garc\'ia-Cuerva, Str\"omberg, and ...
Ky, Luong Dang
core  

Hardy spaces and unbounded quasidisks

Annales Academiae Scientiarum Fennicae Mathematica, 2011
11 ...
Toshiyuki Sugawa, Yong Chan Kim
openaire   +4 more sources

“Dead Lithium” Formation and Mitigation Strategies in Anode‐Free Li‐Metal Batteries

Batteries &Supercaps, Volume 8, Issue 3, March 2025.
Anode‐free lithium metal batteries, though promising due to their high energy density, face challenges from dead lithium formation. “Dead lithium”, disconnected from the anode, causes capacity loss, increased resistance, and safety risks. This review explores the origins of dead lithium, its impact on battery performance, and potential strategies for ...
Mozaffar Abdollahifar, Andrea Paolella
wiley   +1 more source

Toeplitz Operators on Abstract Hardy Spaces Built upon Banach Function Spaces

Journal of Function Spaces, 2017
Let X be a Banach function space over the unit circle T and let H[X] be the abstract Hardy space built upon X. If the Riesz projection P is bounded on X and a∈L∞, then the Toeplitz operator Taf=P(af) is bounded on H[X].
Alexei Yu. Karlovich
doaj   +1 more source

Extensions of Hardy spaces and their use in analysis [PDF]

, 1977
Ronald R. Coifman, Guido Weiss
openalex   +1 more source

A Hardy inequality in the half-space

Journal of Functional Analysis, 2005
The author proves the following inequality of Hardy type, which is valid for \(u \in C_0^\infty(\mathbb R^n_+)\): \[ \int_{\mathbb R^n_+} |\nabla u|^2 \,dx \geq {1\over 4} \int_{\mathbb R^n_+} {|u|^2 \over x_n^2} \,dx + {1\over 8} \int_{\mathbb R^n_+} {|u|^2 \over x_n(x_{n-1}^2 + x_n^2)} \,dx. \tag{1} \] This is an improvement of a previous result by V.
openaire   +2 more sources