2 papers
math.DG2018
The Bernstein problem for Lipschitz intrinsic graphs in the Heisenberg group
Sebastiano Nicolussi, Francesco Serra Cassano
We prove that, in the first Heisenberg group , an entire locally Lipschitz intrinsic graph admitting vanishing first variation of its sub-Riemannian area and non-negati…
math.MG2018
Polarised Lie groups contactomorphic to stratified groups
Sebastiano Nicolussi, Alessandro Ottazzi
For a stratified group , we construct a class of polarised Lie groups, which we call modifications of , that are locally contactomorphic to it. Vice versa, we show that if a…