Abstract
In this paper we provide a characterization of second order fully nonlinear CR invariant equations on the Heisenberg group, which is the analogue in the CR setting of the result proved in the Euclidean setting by A. Li and the first author in Li and Li (2003) [21]. We also prove a comparison principle for solutions of second order fully nonlinear CR invariant equations defined on bounded domains of the Heisenberg group and a comparison principle for solutions of a family of second order fully nonlinear equations on a punctured ball.
Original language | English (US) |
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Pages (from-to) | 1309-1349 |
Number of pages | 41 |
Journal | Journal of Differential Equations |
Volume | 252 |
Issue number | 2 |
DOIs | |
State | Published - Jan 15 2012 |
All Science Journal Classification (ASJC) codes
- Analysis
- Applied Mathematics
Keywords
- CR geometry
- CR invariant equations
- Heisenberg group
- Sublaplacian