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Entropy and closed geodesics. (English) Zbl 0525.58027

MSC:
37D40 Dynamical systems of geometric origin and hyperbolicity (geodesic and horocycle flows, etc.)
53D25 Geodesic flows in symplectic geometry and contact geometry
58E10 Variational problems in applications to the theory of geodesics (problems in one independent variable)
53C22 Geodesics in global differential geometry
28D20 Entropy and other invariants
37A99 Ergodic theory
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