2 citations · 2 across the 2 of their papers we have counts for
4 papers · 1 filter
Some remarks on embeddings in the subelliptic setting
Steven G. Krantz, Marco M. Peloso, Daniel Spector
In this paper we establish an optimal Lorentz estimate for the Riesz potential in the regime in the setting of a stratified group : Let be the homogeneous dimens…
A Note on Estimates for Elliptic Systems with Data
Bogdan Raiţă, Daniel Spector
In this paper we give necessary and sufficient conditions on the compatibility of a th order homogeneous linear elliptic differential operator and differential cons…
A Noninequality for the Fractional Gradient
Daniel Spector
In this paper we give a streamlined proof of an inequality recently obtained by the author: For every there exists a constant such that \begin{align*} \|u…
New Directions in Harmonic Analysis on
Daniel Spector
The study of what we now call Sobolev inequalities has been studied for almost a century in various forms, while it has been eighty years since Sobolev's seminal mathematical contr…