Loss of derivatives for systems of complex vector fields and sums of squares
Complex Variables
2010-09-03 v1
Abstract
We discuss, both for systems of complex vector fields and for sums of squares, the phenomenon discovered by Kohn of hypoellipticity with loss of derivatives.
Cite
@article{arxiv.1009.0486,
title = {Loss of derivatives for systems of complex vector fields and sums of squares},
author = {Tran Vu Khanh and Stefano Pinton and Giuseppe Zampieri},
journal= {arXiv preprint arXiv:1009.0486},
year = {2010}
}
Comments
13 pages