Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4610745 | Journal of Differential Equations | 2013 | 31 Pages |
Abstract
We study the hypoellipticity of (pseudo)differential operators in one variable when a positivity assumption is made on a suitable principal part. We prove that the found Gevrey regularity is optimal.
Related Topics
Physical Sciences and Engineering
Mathematics
Analysis