Article Contents
Article Contents

# Cohomology and subcohomology problems for expansive, non Anosov geodesic flows

• We show that there are examples of expansive, non-Anosov geodesic flows of compact surfaces with non-positive curvature, where the Livsic Theorem holds in its classical (continuous, Hölder) version. We also show that such flows have continuous subaction functions associated to Hölder continuous observables.
Mathematics Subject Classification: 53D25, 37C50, 37C15.

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