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Carnot group
In mathematics, a Carnot group is a simply connected nilpotent Lie group, together with a derivation of its Lie algebra such that the subspace with eigenvalue 1 generates the Lie algebra. Carnot groups have a Carnot–Carathéodory metric. They were introduced by Pansu (1982, 1989) and Mitchell (1985).
References
Mitchell, John (1985), "On Carnot-Carathéodory metrics", Journal of Differential Geometry 21 (1): 35–45, ISSN 0022-040X, MR806700
Pansu, Pierre (1982), Géometrie du groupe d'Heisenberg, Thesis, Universite Paris VII
Pansu, Pierre (1989), "Métriques de Carnot-Carathéodory et quasiisométries des espaces symétriques de rang un", Annals of Mathematics. Second Series 129 (1): 1–60, doi:10.2307/1971484, ISSN 0003-486X, MR979599
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