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A characterization is presented of barycenters of the Radon probability measures supported on a closed convex subset of a given space. A case of particular interest is studied, where the underlying space is itself the space of finite signed…

Probability · Mathematics 2020-11-24 Sergey Berezin , Azat Miftakhov

This paper can be considered as the sequel of [6], where the authors have proposed an abstract construction of Hardy spaces H^1. They shew an interpolation result for these Hardy spaces with the Lebesgue spaces. Here we describe a more…

Classical Analysis and ODEs · Mathematics 2008-09-25 Frédéric Bernicot

These proceedings review direct CP violation in hadronic B decays. The experimental results include those related to the measurement of the unitarity triangle angle gamma using B->D(*)K(*) decays and measurements of charmless hadronic B…

High Energy Physics - Experiment · Physics 2014-12-16 Jim Libby

We study the operator \[ \partial_t - \text{div} A \nabla + B \cdot \nabla \] in parabolic upper-half-space, where $A$ is an elliptic matrix satisfying an oscillation condition and $B$ is a singular drift with a Carleson control. Our main…

Analysis of PDEs · Mathematics 2024-12-13 Simon Bortz , Moritz Egert , Olli Saari

We extend Krasnoselskii's fixed point result to non-self-real functions. We find a new and simple proof for Hillam's result. In our approach, we don't assume the image of the related mapping to be compact or bounded. In this way, we extend…

Optimization and Control · Mathematics 2022-09-08 Hassan Khandani

We study the Carleson measures on NTA and ADP domains in the Heisenberg groups $\mathbb{H}^n$ and provide two characterizations of such measures: (1) in terms of the level sets of subelliptic harmonic functions and (2) via the…

Analysis of PDEs · Mathematics 2024-09-19 Tomasz Adamowicz , Marcin Gryszówka

In this paper, we show that if the bounded solutions to the parabolic Dirichlet problem on a Lipshitz-$\left[1,\frac{1}{2}\right]$ domain obey a Carleson measure estimate, then the corresponding parabolic measure on the boundary will belong…

Analysis of PDEs · Mathematics 2025-09-08 James Warta , Steve Hofmann

We consider the Carleson embeddings of the classical Hardy spaces (on the disk) into a L p ($\mu$) space, where $\mu$ is a Carleson measure on the unit disk. This includes the case of composition operators. We characterize such operators…

Functional Analysis · Mathematics 2017-01-23 Pascal Lefèvre , Luis Rodríguez-Piazza

In this paper, norm estimates are obtained for the problem of minimal-norm tangential interpolation by vector-valued analytic functions in weighted H^p spaces, expressed in terms of the Carleson constants of related scalar measures.…

Functional Analysis · Mathematics 2008-06-09 Birgit Jacob , Jonathan R. Partington , Sandra Pott

We give new proofs of Hardy space estimates for fractional and singular integral operators on weighted and variable exponent Hardy spaces. Our proofs consist of several interlocking ideas: finite atomic decompositions in terms of $L^\infty$…

Classical Analysis and ODEs · Mathematics 2019-02-12 David Cruz-Uribe , Kabe Moen , Hanh Nguyen

In the paper we study closures of classes of log--concave measures under taking weak limits, linear transformations and tensor products. We consider what uniform measures on convex bodies can one obtain starting from some class…

Functional Analysis · Mathematics 2009-10-21 Jakub Onufry Wojtaszczyk

A full characterization of the boundedness of Laplace--Carleson embeddings on $L^\infty$ is provided, in terms of the Carleson intensity of the respective measure and of a suitable weighted Berezin transform of the measure. Moreover,…

Functional Analysis · Mathematics 2026-04-14 Birgit Jacob , Jonathan R. Partington , Sandra Pott , Eskil Rydhe , Felix L. Schwenninger

Riemannian metrics on the unit ball of the quaternions, which are naturally associated with the reproducing kernel Hilbert spaces. We study the metric arising from the Hardy space in detail. We show that, in contrast to the one-complex…

Complex Variables · Mathematics 2013-12-24 Nicola Arcozzi , Giulia Sarfatti

In this paper, we characterize Carleson measure and vanishing Carleson measure on Bergman spaces with admissible weights in terms of {\it t-Berezin transform} and {\it averaging function} as key tools. Moreover, power bounded and power…

Complex Variables · Mathematics 2022-12-12 Aakriti Sharma , Ajay K. Sharma , M. Mursaleen

The so-called density of states is a Borel probability measure on the real line associated with the solution of the Dyson equation which we set up, on any fixed $C^\ast$-probability space, for a selfadjoint offset and a $2$-positive linear…

Functional Analysis · Mathematics 2022-10-11 Tobias Mai

The main purpose of this work is to establish some logarithmic estimates of optimal type in the Hardy-Sobolev space $H^{k, \infty}; k \in {\mathbb{N}}^*$ of an annular domain. These results are considered as a continuation of a previous…

Classical Analysis and ODEs · Mathematics 2012-07-10 Imed Feki

In relatively nice geometric settings, in particular, on Lipschitz domains, absolute continuity of elliptic measure with respect to the surface measure is equivalent to Carleson measure estimates, to square function estimates, and to…

Analysis of PDEs · Mathematics 2024-11-06 Steve Hofmann , José María Martell , Svitlana Mayboroda

We prove a self-improving property for reverse H{\"o}lder inequalities with non-local right hand side. We attempt to cover all the most important situations that one encounters when studying elliptic and parabolic partial differential…

Classical Analysis and ODEs · Mathematics 2018-09-05 Pascal Auscher , Simon Bortz , Moritz Egert , Olli Saari

We discuss the boundary behavior of functions in backward shift invariant subspaces $(B H^2)^{\perp}$, where $B$ is a Blaschke product. Extending some results of Ahern and Clark, we are particularly interested in the growth rates of…

Complex Variables · Mathematics 2015-05-30 Andreas Hartmann , William T. Ross

Harmonically weighted Dirichlet spaces $\mathcal{D}_\mu$ and de Branges_Rovnyak spaces $\mathcal{H}(b)$ are two fundamental structures in analytic function theory exhibiting rich and often complementary properties. The question of when…

Complex Variables · Mathematics 2025-09-08 Carlo Bellavita , Eugenio Dellepiane , Andreas Hartmann , Javad Mashreghi