Global $C^\nf$ Irregularity of the $\bar\partial$--Neumann Problem for Worm Domains
No abstract available.
math.CV↗
arXiv subjects
Michael Christ
Publications and source records attributed to Michael Christ.
Some non-analytic-hypoelliptic sums of squares of vector fields
Certain second-order partial differential operators, which are expressed as sums of squares of real-analytic vector fields in $\Bbb R^3$ and which are well known to be $C^\infty$ hypoelliptic, fail to be analytic hypoelliptic.
math.AP↗