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Monthly Archives: February 2012
Notes of Francesco Bigolin’s lecture
Characterizations of intrinsic regular graphs in Heisenberg groups joint with L. Caravenna and F. Serra Cassano. The following theorem is a subRiemannian version of the implicit function theorem. Theorem 1 (Franchi, Serapioni, Serra Cassano) Let admit continuous first horizontal derivatives. … Continue reading
Notes of Frédéric Jean’s lecture
A class of rectifiable subsets of metric spaces (and Hausdorff measures of curves in SR geometry) Joint work with R. Ghezzi. 1. Case of curves 1.1. length Let distribution define a subRiemannian structure on . Let denote the distributions generated … Continue reading
Notes of Pierre Pansu’s lecture nr 1
Differential forms and the Hölder homeomorphism problem, after Gromov and Rumin 1. Gromov’s Hölder homeomorphism problem 1.1. The problem Question (Gromov 1993). Let be an dimensional subRiemannian manifold. For which does there exist locally a homeomorphism which is Hölder continuous … Continue reading