Optimal domain and integral extension of operators

S Okada, W Ricker, EAS Pérez - Operator Theory: Advances and …, 2008 - Springer
Operator theory and functional analysis have a long tradition, initially being guided by
problems from mathematical physics and applied mathematics. Much of the work in Banach …

Sobolev embeddings, rearrangement-invariant spaces and Frostman measures

A Cianchi, L Pick, L Slavíková - Annales de l'Institut Henri Poincaré C, 2020 - ems.press
Sobolev embeddings, rearrangement-invariant spaces and Frostman measures Page 1
Available online at www.sciencedirect.com ScienceDirect Ann. IH Poincaré – AN 37 (2020) …

Banach lattices with the Fatou property and optimal domains of kernel operators

GP Curbera, WJ Ricker - Indagationes Mathematicae, 2006 - Elsevier
New features of the Banach function space L1w (v), that is, the space of all v-scalarly
integrable functions (with v any vector measure), are exposed. The Fatou property plays an …

Optimal extension of the Hausdorff-Young inequality

G Mockenhaupt, WJ Ricker - 2008 - degruyter.com
Abstract Given 1< p< 2, we construct a Banach function space with σ-order continuous norm
which contains and has the property that the Fourier transform map has a continuous ℓ …

Inversion and extension of the finite Hilbert transform on

GP Curbera, S Okada, WJ Ricker - Annali di Matematica Pura ed Applicata …, 2019 - Springer
The principle of optimizing inequalities, or their equivalent operator theoretic formulation, is
well established in analysis. For an operator, this corresponds to extending its action to …

Vector measures, integration and applications

GP Curbera, WJ Ricker - Positivity, 2007 - Springer
We will deal exclusively with the integration of scalar (ie, ℝ or ℂ)-valued functions with
respect to vector measures. The general theory can be found in [36, 37, 32],[44, Ch. I II] and …

Compactness properties of Sobolev imbeddings for rearrangement invariant norms

G Curbera, W Ricker - Transactions of the American Mathematical Society, 2007 - ams.org
Compactness properties of Sobolev imbeddings are studied within the context of
rearrangement invariant norms. Attention is focused on the extremal situation, namely, when …

Operator ideal properties of vector measures with finite variation

S Okada, W Ricker, L Rodríguez-Piazza - Studia Mathematica, 2011 - infona.pl
Given a vector measure m with values in a Banach space X, a desirable property (when
available) of the associated Banach function space L¹ (m) of all m-integrable functions is that …

[PDF][PDF] The finite Hilbert transform on

GP Curbera, S Okada, WJ Ricker - arXiv preprint arXiv:2310.10228, 2023 - arxiv.org
arXiv:2310.10228v1 [math.FA] 16 Oct 2023 Page 1 arXiv:2310.10228v1 [math.FA] 16 Oct
2023 THE FINITE HILBERT TRANSFORM ON (−1, 1) GUILLERMO P. CURBERA, SUSUMU …

Optimal domain of Volterra operators in Korenblum spaces

AA Albanese, J Bonet, WJ Ricker - arXiv preprint arXiv:2502.00755, 2025 - arxiv.org
The aim of this article is to study the largest domain space $[T, X] $, whenever it exists, of a
given continuous linear operator $ T\colon X\to X $, where $ X\subseteq H (\mathbb {D}) $ is …