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math.AP2023
Large-scale homogeneity and isotropy versus fine-scale condensation. A model based on Muckenhoupt type densities
Hugo Aimar, Federico Morana
In this brief note we aim to provide, through a well known class of singular densities in harmonic analysis, a simple approach to the fact that the homogeneity of the universe on s…
math.AP2016
Harnack's Inequality and A Priori Estimates for Fractional Powers of Non-symmetric Differential Operators
Hugo Aimar, Gastón Beltritti, Ivana Gómez +1
We obtain a new general extension theorem in Banach spaces for operators which are not required to be symmetric, and apply it to obtain Harnack estimates and a priori regularity fo…