Accepted Paper
Inserted: 26 oct 2007
Last Updated: 29 jun 2009
Journal: Adv. Calc. Var.
Year: 2009
Abstract:
We continue the study about $H$- regular graphs, a class of intrinsic regular hypersurfaces in the Heisenberg group $H^n=C^n \times R\equiv R^{2n+1}$ endowed with a left- invariant metric $d_{\infty}$ equivalent to its Carnot- Carathéodory metric. Here we investigate their relationships with suitable weak solutions of nonlinear first- order PDEs. As a consequence we infer some of their geometric properties as an uniqueness result for $H$- regular graphs of prescribed horizontal normal as well as their (Euclidean) regularity provided regularity on the horinzontal normal.
Keywords: intrinsic regular hypersurfaces in the Heisenberg group
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