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O.V.Schwarzman
Elementary Theory of  Curvature in Topology
-      Basic facts about the Metrics, Connections, and Curvature.
 -      Geodesics. The Hopf-Rinow theorem.
 -      First and second variations.
 -      Sec, Ric, and Scal.
 -      The Singe theorem.
 -      The Hadamard-Cartan theorem.
 -      Elementary geometry of the Sec<=0-manifolds. The Toponogov Theorem.
 -      The Tits-Karpelevich compactification.
 -      SL(n,R)/SO(n,R). An example.
 -     Gromov Simplicial Volume and the MinVol problem.
 -     Something about Sec>=0-manifolds.
 -     Berge spheres.
 -     Fundamental group growth and curvature (the Milnor theorem).