4 papers
A Wiener test à la Landis for evolutive Hörmander operators
Giulio Tralli, Francesco Uguzzoni
In this paper we prove a Wiener-type characterization of boundary regularity, in the spirit of a classical result by Landis, for a class of evolutive Hörmander operators. We actual…
Wiener-type tests from a two-sided Gaussian bound
Ermanno Lanconelli, Giulio Tralli, Francesco Uguzzoni
In this paper we are concerned with hypoelliptic diffusion operators . Our main aim is to show, with an axiomatic approach, that a Wiener-type test of -re…
Wiener criterion for X-elliptic operators
Giulio Tralli, Francesco Uguzzoni
In this note we prove a Wiener criterion of regularity of boundary points for the Dirichlet problem related to -elliptic operators in divergence form enjoying the doubling condi…
Some existence results for the Webster scalar curvature problem in presence of symmetry
Veronica Felli, Francesco Uguzzoni
We prove some existence results for the Webster scalar curvature problem on the Heisenberg group and on the unit sphere of , under the assumption of some natural…