Abstract
I investigate some aspects of the geometry of the bicharacteristics of a class of hypoelliptic second order partial differential operators. The resulting geometry looks quite a bit like Riemannian geometry, although with interesting differences.
Original language | English (US) |
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Pages (from-to) | 355-378 |
Number of pages | 24 |
Journal | Pacific Journal of Mathematics |
Volume | 136 |
Issue number | 2 |
DOIs | |
State | Published - Feb 1989 |
ASJC Scopus subject areas
- Mathematics(all)