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Article Dans Une Revue Proceedings of the American Mathematical Society Année : 2013

Sub-Riemannian balls in CR Sasakian manifolds

Résumé

We prove global estimates for the sub-Riemannian distance of CR Sasakian manifolds with non negative horizontal Webster-Tanaka Ricci curvature. In particular, in this setting, large sub-Riemannian balls are comparable to Riemannian balls.

Dates et versions

hal-00779404 , version 1 (22-01-2013)

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Fabrice Baudoin, Michel Bonnefont. Sub-Riemannian balls in CR Sasakian manifolds. Proceedings of the American Mathematical Society, 2013, 141 (11), pp.3919-3924. ⟨10.1090/S0002-9939-2013-11783-1⟩. ⟨hal-00779404⟩

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