English
Related papers

Related papers: Extrapolation on Hardy spaces and applications

200 papers

In this paper some extensions of Hardy's integral inequalities to $0<p\leq 1$ are established.

Classical Analysis and ODEs · Mathematics 2011-03-08 Shunchao Long

We derive a family of interpolation estimates which improve Hardy's inequality and cover the Sobolev critical exponent. We also determine all optimizers among radial functions in the endpoint case and discuss open questions on nonrestricted…

Classical Analysis and ODEs · Mathematics 2025-01-03 Charlotte Dietze , Phan Thành Nam

We prove that atomic decomposition for the Hardy spaces h_1 and H_1 is valid for noncommutative martingales. We also establish that the conditioned Hardy spaces of noncommutative martingales h_p and bmo form interpolation scales with…

Operator Algebras · Mathematics 2010-01-06 Turdebek N. Bekjan , Zeqian Chen , Mathilde Perrin , Zhi Yin

We study strict inclusion relations between approximation and interpolation spaces.

Classical Analysis and ODEs · Mathematics 2011-03-08 J. M. Almira

We define by interpolation a scale analogous to the Hardy $H^p$ scale for complete Pick spaces, and establish some of the basic properties of the resulting spaces, which we call $\mathcal{H}^p$. In particular, we obtain an…

Functional Analysis · Mathematics 2022-04-25 Alexandru Aleman , Michael Hartz , John E. McCarthy , Stefan Richter

Introduced by Coifman, Meyer, and Stein, the tent spaces have seen wide applications in Harmonic Analysis. Their analytic cousins have seen some applications involving the derivatives of Hardy space functions. Moreover, the tent spaces have…

Complex Variables · Mathematics 2020-04-22 Caleb Parks

We propose a new viewpoint on Hilbert scales extending them by means of all Hilbert spaces that are interpolation ones between spaces on the scale. We prove that this extension admits an explicit description with the help of…

Functional Analysis · Mathematics 2021-02-17 Vladimir Mikhailets , Aleksandr Murach , Tetiana Zinchenko

We introduce connections between the Cuntz relations and the Hardy space H_2 of the open unit disk . We then use them to solve a new kind of multipoint interpolation problem in H_2, where for instance, only a linear combination of the…

Functional Analysis · Mathematics 2013-01-21 Daniel Alpay , Palle Jorgensen , Izchak Lewkowicz , Itzik Martziano

In this note we give several characterisations of weights for two-weight Hardy inequalities to hold on general metric measure spaces possessing polar decompositions. Since there may be no differentiable structure on such spaces, the…

Functional Analysis · Mathematics 2019-12-24 Michael Ruzhansky , Daulti Verma

We establish a new improvement of the classical $L^p$-Hardy inequality on the multidimensional Euclidean space in the supercritical case. Recently, in [14], there has been a new kind of development of the one dimensional Hardy inequality.…

Functional Analysis · Mathematics 2024-01-12 Prasun Roychowdhury , Michael Ruzhansky , Durvudkhan Suragan

We determine the extrapolation law for rearrangement operators of the Haar system on vector valued Hardy spaces.

Functional Analysis · Mathematics 2014-02-26 Paul F. X. Mueller

This paper is essentially a survey on several classical results of harmonic analysis and their recent extensions to Banach spaces. The first part of the paper is a summary of some important results in such topics as Bernstein spaces,…

Functional Analysis · Mathematics 2025-12-25 Isaac Pesenson

This is primarily an exposition of our work on Hardy algebras associated with $W^*$-correspondences with an emphasis on interpolation results (a generalized Nevanlinna-Pick theorem) and the concepts of Schur class operator functions (and…

Operator Algebras · Mathematics 2007-05-23 Paul S. Muhly , Baruch Solel

Carleson measures and interpolating and sampling sequences for weighted Bergman spaces on the unit disk are described for weights that are radial and grow faster than the standard weights $(1-|z|)^{-\alpha}$, $0<\alpha<1$. These results…

Complex Variables · Mathematics 2014-12-10 Kristian Seip

Given a metric measure space $X$, we consider a scale of function spaces $T^{p,q}_s(X)$, called the weighted tent space scale. This is an extension of the tent space scale of Coifman, Meyer, and Stein. Under various geometric assumptions on…

Classical Analysis and ODEs · Mathematics 2016-12-21 Alex Amenta

In this paper we study interpolation in local extensions of a base theory. We identify situations in which it is possible to obtain interpolants in a hierarchical manner, by using a prover and a procedure for generating interpolants in the…

Logic in Computer Science · Computer Science 2015-07-01 Viorica Sofronie-Stokkermans

This expository thesis contains a study of four interpolation theorems, the requisite background material, and a few applications. The materials introduced in the first three sections of Chapter 1 are used to motivate and prove the…

Classical Analysis and ODEs · Mathematics 2012-06-14 Mark H. Kim

We study the question of when two weighted variable exponent Bergman spaces or Hardy spaces are equivalent. As an application, we show that variable exponent Hardy spaces have a close relation to classical Hardy spaces when the exponent is…

Complex Variables · Mathematics 2018-09-11 Timothy Ferguson

Interpolation Theory gives techniques for constructing spaces from two initial Banach spaces. We provide several conditions under which the restriction of a holomorphic map $f:X_0+X_1 \rightarrow Y_0+Y_1$ to the interpolated spaces (using…

Functional Analysis · Mathematics 2017-06-21 Pablo Jiménez-Rodíguez

In his approach to Jones theorem on the interpolation of Hardy spaces on the torus, Pisier introduced an original method allowing the computation of complex interpolation spaces by means of real interpolation techniques. This approach has…

Functional Analysis · Mathematics 2026-03-18 Hugues Moyart