OpenAI reports Katok’s entropy rigidity in negative curvature

For every closed connected smooth Riemannian manifold of dimension at least three with strictly negative sectional curvature, normalized Liouville measure has maximal entropy for the geodesic flow if and only if the metric is locally symmetric.

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Understanding the problem

Read the background

For every closed connected smooth Riemannian manifold of dimension at least three with strictly negative sectional curvature, normalized Liouville measure has maximal entropy for the geodesic flow if and only if the metric is locally symmetric.

Why it matters

If correct, characterizes locally symmetric negatively curved metrics by maximality of Liouville entropy in all dimensions at least three.

What counts as progress

Does maximal Liouville entropy characterize local symmetry in negative curvature?

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