Results 51 to 60 of about 2,945 (178)

Flag Hardy spaces and Marcinkiewicz multipliers on the Heisenberg group: an expanded version

, 2012
Marcinkiewicz multipliers are L^{p} bounded for ...
Coifman, Fefferman, Fefferman, Gilbert, Han, Jessen   +5 more
core   +1 more source

Marcinkiewicz integrals along subvarieties on product domains

International Journal of Mathematics and Mathematical Sciences, 2004
We study the Lp mapping properties of a class of Marcinkiewicz integral operators on product domains with rough kernels supported by subvarieties.
Ahmad Al-Salman
doaj   +1 more source

A boundedness result for Marcinkiewicz integral operator [PDF]

Open Mathematics, 2020
Abstract We extend a boundedness result for Marcinkiewicz integral operator. We find a new space of radial functions for which this class of singular integral operators remains
Laith Hawawsheh, Mohammad Abudayah
openaire   +3 more sources

Evidence Against Syntactic Encapsulation in Large Language Models

Cognitive Science, Volume 50, Issue 3, March 2026.
Abstract Transformer‐based large language models (LLMs) have recently demonstrated exceptional performance in a variety of linguistic tasks. LLMs primarily combine information across words in a sentence using the attention mechanism, implemented by “attention heads:” these components assign numerical weights linking different words in the input to one ...
Thomas A. McGee, Yiyang Zhang, Idan A. Blank   +2 more
wiley   +1 more source

Beyond Usual Suspects: Revisiting Barriers to Childbearing Decisions in a Low Fertility Setting

Population and Development Review, Volume 52, Issue 1, Page 94-134, March 2026.
Abstract Fertility rates in developed countries have declined to historically low levels, yet the reasons remain incompletely understood. This study examines the relative importance of diverse macro contextual constraints on childbearing intentions among young adults (aged 20–35) in Poland, a country emblematic of Europe's fertility decline.
Anna Kurowska, Anna Matysiak, Magdalena Grabowska   +2 more
wiley   +1 more source

Potential trace inequalities via a Calderón‐type theorem

Journal of the London Mathematical Society, Volume 113, Issue 3, March 2026.
Abstract In this paper, we develop a general theoretical tool for the establishment of the boundedness of notoriously difficult operators (such as potentials) on certain specific types of rearrangement‐invariant function spaces from analogous properties of operators that are easier to handle (such as fractional maximal operators).
Zdeněk Mihula, Luboš Pick, Daniel Spector   +2 more
wiley   +1 more source

Parabolic Marcinkiewicz integrals on product spaces and extrapolation

Open Mathematics, 2016
In this paper, we study the the parabolic Marcinkiewicz integral MΩ,hρ1,ρ2${\cal M}_{\Omega, h}^{{\rho _{1,}}{\rho _2}}$ on product domains Rn × Rm (n, m ≥ 2). Lp estimates of such operators are obtained under weak conditions on the kernels.
Ali Mohammed, Al-Dolat Mohammed
doaj   +1 more source

A note on certain integrals along polynomial compound curves

Journal of Inequalities and Applications, 2019
In this paper we consider a singular integral operator and a parametric Marcinkiewicz integral operator with rough kernel. These operators have singularity along sets of the form curves {x=P(φ(|y|))y′} $\{x=P(\varphi (|y|))y'\}$, where P is a real ...
Feng Liu, Pu Zhang
doaj   +1 more source

Electoral Reform and Legislative Behavior: Evidence From Denmark's Transition to Proportional Representation

Legislative Studies Quarterly, Volume 51, Issue 1, February 2026.
ABSTRACT This article examines the effect of electoral system reform on legislative speech‐making by Members of Parliament (MPs), focusing on the case of Denmark's 1918 shift from single‐member districts (SMD) to proportional representation (PR) in elections to the lower chamber.
Martin Ejnar Hansen
wiley   +1 more source

On the Fourier transform of measures in Besov spaces

Bulletin of the London Mathematical Society, Volume 58, Issue 1, January 2026.
Abstract We prove quantitative estimates for the decay of the Fourier transform of the Riesz potential of measures that are in homogeneous Besov spaces of the negative exponent: ∥Iαμ̂∥Lp,∞⩽C∥μ∥Mb12supt>0td−β2∥pt*μ∥∞12,$$\begin{align*} \Vert \widehat{I_{\alpha }\mu }\Vert _{L^{p, \infty }} \leqslant C \Vert \mu \Vert _{M_b}^{\frac{1}{2}}{\left(\sup _{t ...
Riju Basak, Daniel Spector, Dmitriy Stolyarov   +2 more
wiley   +1 more source