Some remarks on polar sets to sums of squares
Analysis of PDEs
2019-02-20 v1
Abstract
We argue that a necessary condition for hypoellipticity is that the polar is not a spiral domain.
Cite
@article{arxiv.1902.07166,
title = {Some remarks on polar sets to sums of squares},
author = {Tove Dahn},
journal= {arXiv preprint arXiv:1902.07166},
year = {2019}
}