Abstract
We define a class of lengths of paths in a sub-Riemannian manifold. It includes the length of horizontal paths but also measures the length of transverse paths. It is obtained by integrating an infinitesimal measure which generalizes the norm on the tangent space. This requires the definition and the study of the metric tangent space (in Gromov's sense). As an example, we compute those measures in the case of contact sub-Riemannian manifolds.
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References
A. Agrachev, B. Bonnard, M. Chyba and I. Kupka,Sub-Riemannian sphere in Martinet flat case, ESAIM Control Optim. Calc. Var.2 (1997), 377–448.
R. Beals, B. Gaveau and P. C. Greiner,Hamilton-Jacobi theory and the heat kernel on Heisenberg groups, J. Math. Pures Appl.79 (2000), 633–689.
A. Bellaïche,The tangent space in sub-Riemannian geometry, inSub-Riemannian Geometry (A. Bellaïche and J.-J. Risler, eds.), Progress in Mathematics, Birkhäuser, Boston, 1996.
M. Gromov,Structures Métriques pour les Variétés Riemanniemes, Cedic-Nathan, Paris, 1981.
M. Gromov,Carnot-Carathéodory spaces seen from within, inSub-Riemannian Geometry (A. Bellaïche and J.-J. Risler, eds.), Progress in Mathematics, Birkhäuser, Boston, 1996.
H. Hermes,Nilpotent and high-order approximations of vector field systems, SIAM Review33 (1991), 238–264.
J. Jean,Paths in sub-Riemannian geometry, inNonlinear Control in the Year 2000 (A. Isidori, F. Lamnabhi-Lagarrigue and W. Respondek, eds.), Springer-Verlag, Berlin, 2000.
F. Jean,Entropy and complexity of a path in sub-Riemannian geometry, ESAIM Control Optim. Calc. Var.9 (2003), 485–506.
F. Jean,Uniform estimation of sub-Riemannian balls, J. Dynam. Control Systems7 (2001), 473–500.
G. A. Margulis and G. D. Mostow,The differential of a quasi-conformal mapping of a Carnot-Carathéodory space, Geom. Funct. Anal.5 (1995), 402–433.
G. A. Margulis and G. D. Mostow,Some remarks on the definition of tangent cones in a Carnot-Carthéodory space, J. Analyse Math.80 (2000), 299–317.
J. Mitchell,On Carnot-Carathéodory metrics, J. Differential Geom.21 (1985), 35–45.
R. Montgomery,Survey of singular geodesics, inSub-Riemannian Geometry (A. Bellaïche and J.-J. Risler, eds.), Progress in Mathematics, Birkhäuser, Boston, 1996.
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Falbel, E., Jean, F. Measures of transverse paths in sub-Riemannian geometry. J. Anal. Math. 91, 231–246 (2003). https://doi.org/10.1007/BF02788789
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DOI: https://doi.org/10.1007/BF02788789