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For a Hadamard manifold      M M      , the set of points at infinity      M ( ∞  ) M(\infty )       is defined. If the geodesic flow on the unit tangent bundle of      M M       is of Anosov type, then with a certain curvature condition      M M       satisfies the Visibility Axiom. To prove this result, we use the Tits metric on      M ( ∞  ) M(\infty )      .

The visibility axiom on a Hadamard manifold whose geodesic flow is of Anosov type