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This article is cited in 1 scientific paper (total in 1 paper)
MATHEMATICS
Space-likeness of classes of level surfaces on Carnot groups and their metric properties
M. B. Karmanova Sobolev Institute of Mathematics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russian Federation
Abstract:
We consider $C^1$-smooth vector functions defined on Carnot groups of arbitrary depth, deduce conditions for space-likeness of their level surfaces, and describe their metric properties from the viewpoint of sub-Lorentzian geometry. We prove the coarea formula as an expression of the measure of a subset of a Carnot group in terms of the sub-Lorentzian measures of its intersections with level sets of a vector function.
Keywords:
Carnot group, sub-Lorentzian structure, vector function, level set, sub-Lorentzian measure, coarea formula.
Citation:
M. B. Karmanova, “Space-likeness of classes of level surfaces on Carnot groups and their metric properties”, Dokl. RAN. Math. Inf. Proc. Upr., 492 (2020), 38–42; Dokl. Math., 101:3 (2020), 205–208
Linking options:
https://www.mathnet.ru/eng/danma69 https://www.mathnet.ru/eng/danma/v492/p38
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