Connectedness conjecture for Anosov metrics on negatively curved 3-manifolds

From papers

Let (Σ,g0)(\Sigma,g_0) be a negatively curved oriented closed 33-manifold, and let the space of Anosov metrics on Σ\Sigma consist of metrics for which the geodesic flow is Anosov.

Connectedness conjecture. The space of Anosov metrics on Σ\Sigma is connected.

Connectedness would extend the generic conclusions established on the component containing a hyperbolic metric to all Anosov metrics on the manifold. The source says that the conjecture is open and notes a relationship with the conjectured long-time convergence of cross curvature flow.

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Sources & referencesView supporting material

Primary source

Tristan Humbert and Zhongkai Tao, “Generic twisted Pollicott–Ruelle resonances and zeta function at zero”, arXiv:2602.12166 (2026).

Additional references

3 papers in this index state this conjecture (2014–2026). The statement above is taken from the most recent of them; the others are arXiv:1906.03733, arXiv:1402.1392.

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