Results 31 to 40 of about 201 (131)

Littlewood, Paley and almost‐orthogonality: a theory well ahead of its time

Journal of the London Mathematical Society, Volume 113, Issue 5, May 2026.
Abstract The classic paper by Littlewood and Paley [J. Lond. Math. Soc. (1), 6 (1931), 230–233] marked the birth of Littlewood–Paley theory. We discuss this paper and its impact from a historical perspective, include an outline of the results in the paper and their subsequent significance in relation to developments over the last century, and set them ...
Anthony Carbery
wiley   +1 more source

Inequalities for generalized parametric Marcinkiewicz integrals along polynomial compound curves [PDF]

Journal of Mathematical Inequalities, 2020
Summary: Under some weaker size conditions assumed on the integral kernels both on the unit sphere and in the radial directions, the sharp \(L^p\) boundedness was proved for the generalized parametric Marcinkiewicz integrals along polynomial compound curves via an extrapolation argument.
Liu, Feng, Fu, Zunwei, Wang, Liguang
openaire   +1 more source

The Electoral Coalition of the Radical Right in Western Europe

The British Journal of Sociology, Volume 77, Issue 2, Page 300-317, March 2026.
ABSTRACT While most research on the radical right attempts to identify the one central voting motive among its supporters, few studies have sought to differentiate between different types of voters. Given this research gap, we assume that there are multiple paths to the radical right and that different groups have different motives for their support ...
Florian Buchmayr
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

Improving Outcome Reporting in Paediatric Airway Management in Clinical Trials (IMPACT): A Study Protocol for Core Outcomes and Clinical Endpoints

Acta Anaesthesiologica Scandinavica, Volume 70, Issue 1, January 2026.
ABSTRACT Background Although clinical trials are fundamental to advancing evidence‐based practice, significant heterogeneity in outcome reporting poses a considerable challenge to the validity of systematic reviews. This inconsistency impedes the ability to compare, synthesise and interpret research findings effectively.
Clyde T. Matava, Julia M. Olsen, Vanessa Marchesini, Thomas Engelhardt, Alexander Fuchs, Thomas Riva, Nikolaus E. Wolter, Britta S. von Ungern‐Sternberg, Mary Lyn Stein, Nicola Disma, Rebecca M. Gray, Jamuna B. Navaratnarajah, Vinícius C. Quintão, Patrick N. Olomu, Maren Kleine‐Brueggeney, Annery Garcia‐Marcinkiewicz, Taiki Kojima, Karin Becke‐Jakob, John E. Fiadjoe, Arash Afshari, Pete G. Kovatsis   +20 more
wiley   +1 more source

The scalar T1 theorem for pairs of doubling measures fails for Riesz transforms when p not 2

Journal of the London Mathematical Society, Volume 113, Issue 1, January 2026.
Abstract We show that for an individual Riesz transform in the setting of doubling measures, the scalar T1$T1$ theorem fails when p≠2$p \ne 2$: for each p∈(1,∞)∖{2}$ p \in (1, \infty) \setminus \lbrace 2\rbrace$, we construct a pair of doubling measures (σ,ω)$(\sigma, \omega)$ on R2$\mathbb {R}^2$ with doubling constant close to that of Lebesgue ...
Michel Alexis, José Luis Luna‐Garcia, Eric T. Sawyer, Ignacio Uriarte‐Tuero   +3 more
wiley   +1 more source

The generalized Marcinkiewicz-Zygmund inequality for trigonometric polynomials

Journal of Mathematical Analysis and Applications, 1991
Let \(T\) be a given trigonometric polynomial of degree \(n\) and \(p\) be a number such that ...
openaire   +1 more source

Global Solvability of the Generalized Navier−Stokes System in Critical Besov Spaces

Journal of Mathematics, Volume 2026, Issue 1, 2026.
This paper is devoted to the global solvability of the Navier−Stokes system with a fractional Laplacian (−Δ)α in Rn for n ≥ 2, where the convective term has the form (|u|m−1u)·∇u for m ≥ 1. By establishing the estimates for the difference u1m−1u1−u2m−1u2 in homogeneous Besov spaces and employing the maximal regularity property of (−Δ)α in Lorentz−Besov
Huiyang Zhang, Shiwei Cao, Qinghua Zhang, Dengfeng Lu   +3 more
wiley   +1 more source

Global second‐order estimates in anisotropic elliptic problems

Proceedings of the London Mathematical Society, Volume 130, Issue 3, March 2025.
Abstract This work deals with boundary value problems for second‐order nonlinear elliptic equations in divergence form, which emerge as Euler–Lagrange equations of integral functionals of the Calculus of Variations built upon possibly anisotropic norms of the gradient of trial functions.
Carlo Alberto Antonini, Andrea Cianchi, Giulio Ciraolo, Alberto Farina, Vladimir Maz'ya   +4 more
wiley   +1 more source

Commutators of Marcinkiewicz integrals associated with Schrödinger operator on generalized weighted Morrey spaces [PDF]

Journal of Mathematical Inequalities, 2016
Summary: Let \(L=-\Delta+V\) be a Schrödinger operator, where \(\Delta\) is the Laplacian on \(\mathbb{R}^n\), while nonnegative potential \(V\) belongs to the reverse Hölder class. Let also \(\Omega\in L_q(S^{n-1})\) be a homogeneous function of degree zero with \(q>1\) and have a mean value zero on \(S^{n-1}\). In this paper, we study the boundedness
Guliyev, Vagif S., Akbulut, Ali, Hamzayev, Vugar H., Kuzu, Okan   +3 more
openaire   +1 more source