activity
20002026
most citedPointwise Symmetrization Inequalities for Sobolev functions and applications

49 citations · 140 across the 17 of their papers we have counts for

collaborators

19 papers

math.FA2026

Oscillation Classes: An Interpolation Approach

Joaquim Martin

Let \(φ\) be an admissible concave function on \((0,1)\) and let \(X\) be a rearrangement-invariant space. We study the classes determined by the oscillation functional \[ \mathcal…

math.FA2026

Oscillation inequalities, lower ball growth and Sobolev embeddings on metric measure spaces

Joaquim Martín

We study the relation between lower ball growth, rearrangement oscillations, and Sobolev-type embeddings on metric measure spaces. We prove that a lower estimate for the ball funct…

math.FA2026

Oscillation Functionals and Embeddings in Rearrangement-Invariant Spaces

Joaquim Martin

We study embeddings associated with oscillation functionals in rearrangement-invariant spaces. More precisely, given a positive function \(ψ\), we analyze how the interaction betwe…

math.FA2019

Symmetrization Inequalities for Probability metric spaces with Convex Isoperimetric profile

Joaquim Martin, Walter A. Ortiz

We obtain symmetrization inequalities on probability metric spaces with convex isoperimetric profile which incorporate in their formulation the isoperimetric estimator and that can…

math.FA2015★ 9 cited

Isoperimetric weights and generalized uncertainty inequalities in metric measure spaces

Joaquim Martin, Mario Milman

We extend the recent uncertainty inequalities obtained by Dall'ara-Trevisan to the metric setting. For this purpose we introduce a new class of weights, named *isoperimetri…

math.FA2013

Towards a unified theory of Sobolev inequalities

Joaquim Martin, Mario Milman

We discuss our work on pointwise inequalities for the gradient which are connected with the isoperimetric profile associated to a given geometry. We show how they can be used to un…