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Sibirskii Matematicheskii Zhurnal, 2012, Volume 53, Number 4, Pages 839–861
(Mi smj2368)
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This article is cited in 29 scientific papers (total in 29 papers)
The graphs of Lipschitz functions and minimal surfaces on Carnot groups
M. B. Karmanova Sobolev Institute of Mathematics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk
Abstract:
We study and solve a new problem for the class of Lipschitz mappings (with respect to sub-Riemannian metrics) on Carnot groups. We introduce the new concept of graph for the functions on a Carnot group, and then the new concept of sub-Riemannian differentiability generalizing $hc$-differentiability. We prove that the mapping-“graphs” are almost everywhere differentiable in the new sense. For these mappings we define a concept of intrinsic measure and obtain an area formula for calculating this measure. By way of application, we find necessary and sufficient conditions on the class of surface-“graphs” under which they are minimal surfaces (with respect to the intrinsic measure of a surface).
Keywords:
Carnot group, Lipschitz mapping, graph, area formula, minimal surface.
Received: 12.03.2012
Citation:
M. B. Karmanova, “The graphs of Lipschitz functions and minimal surfaces on Carnot groups”, Sibirsk. Mat. Zh., 53:4 (2012), 839–861; Siberian Math. J., 53:4 (2012), 672–690
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https://www.mathnet.ru/eng/smj2368 https://www.mathnet.ru/eng/smj/v53/i4/p839
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Abstract page: | 420 | Full-text PDF : | 126 | References: | 74 | First page: | 4 |
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