2016/10/31 by Lucas Dahinden · 1 citation
Mathematics · #math.SG
paper · pdf · doi:10.1007/s12188-017-0180-7
arxiv created 2017/06/08 · arxiv updated 2017/06/09
The classical Bott-Samelson theorem states that if on a Riemannian manifold all geodesics issuing from a certain point return to this point, then the universal cover of the manifold has the cohomology ring of a compact rank one symmetric space. This result on geodesic flows has been generalized to Reeb flows and partially to positive Legendrian isotopies by Frauenfelder-Labrousse-Schlenk. We prove the full theorem for positive Legendrian isotopies.