2 papers
math.DG2022
Linearisability of divergence-free fields along invariant 2-tori
David Perrella, David Pfefferlé, Luchezar Stoyanov
We find conditions under which the restriction of a divergence-free vector field to an invariant toroidal surface is linearisable. The main results are similar in conclusio…
math.DG2021
A Stefan-Sussmann theorem for normal distributions on manifolds with boundary
David Perrella, David Pfefferlé, Luchezar Stoyanov
An analogue of the Stefan-Sussmann Theorem on manifolds with boundary is proven for normal distributions. These distributions contain vectors transverse to the boundary along its e…