Abstract
In this paper we deal with some problems concerning minimal hypersurfaces in Carnot-Carathéodory (CC) structures. More precisely we will introduce a general calibration method in this setting and we will study the Bernstein problem for entire regular intrinsic minimal graphs in a meaningful and simpler class of CC spaces, i.e. the Heisenberg group \({\mathbb{H}^n}\) . In particular we will positively answer to the Bernstein problem in the case n = 1 and we will provide counter examples when \({n\geq 5}\) .
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V.B.A. is supported by MIUR, Italy, GNAMPA of INDAM and University of Trento, Italy.
F.S.C. is supported by MIUR, Italy, GNAMPA of INDAM and University of Trento, Italy.
D.V. is supported by MIUR, Italy, GNAMPA of INDAM and Scuola Normale Superiore, Italy. Part of the work was done while D.V. was a visitor at the University of Trento. He wishes to thank the Department of Mathematics for its hospitality.
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Adesi, V.B., Cassano, F.S. & Vittone, D. The Bernstein problem for intrinsic graphs in Heisenberg groups and calibrations. Calc. Var. 30, 17–49 (2007). https://doi.org/10.1007/s00526-006-0076-3
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DOI: https://doi.org/10.1007/s00526-006-0076-3