Cross section maps for geodesic flows. I. (The modular surface). (English) Zbl 0496.58009

Ergodic theory and dynamical systems II, Proc. spec. Year, Maryland 1979-80, Prog. Math. 21, 103-161 (1982).


37A99 Ergodic theory
37D40 Dynamical systems of geometric origin and hyperbolicity (geodesic and horocycle flows, etc.)
53D25 Geodesic flows in symplectic geometry and contact geometry
53C22 Geodesics in global differential geometry


Zbl 0483.00005