Sandon's translated-points conjecture for contactomorphisms

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Let (V,ξ)(V,\xi) be a closed contact manifold, where ξ\xi is a cooriented contact structure, and let Cont⁡0(V,ξ)\operatorname{Cont}_0(V,\xi) denote the identity component of its contactomorphism group. Fix a contact form α\alpha with ξ=ker⁡α\xi=\ker\alpha. A point x∈Vx\in V is an α\alpha-translated point of a contactomorphism ϕ\phi if

∃s∈Rsuch thatϕ(x)=ϕαs(x)and(ϕ∗α)x=αx,\exists s\in\mathbb{R}\quad\text{such that}\quad \phi(x)=\phi_\alpha^s(x)\quad\text{and}\quad (\phi^*\alpha)_x=\alpha_x,

where {ϕαt}t∈R\{\phi_\alpha^t\}_{t\in\mathbb{R}} is the Reeb flow of α\alpha. Sandon's translated-points conjecture. For every ϕ∈Cont⁡0(V,ξ)\phi\in\operatorname{Cont}_0(V,\xi) and every contact form α\alpha, the number of α\alpha-translated points of ϕ\phi is at least the number of critical points of a function. The conjecture predicts an analogue of the Arnold conjecture for contactomorphisms, replacing fixed points by translated points. The source does not specify the function or provide evidence resolving the conjecture, so its precise lower bound and status should be checked against the surrounding paper or cited literature.

References

Primary source

Brian Tervil, “Translated points for contactomorphisms of prequantization spaces over monotone symplectic toric manifolds”, arXiv:1811.09984 (2022).

Additional references

4 papers in this index state this conjecture (2011–2018). The statement above is taken from the most recent of them; the others are arXiv:1411.1457, arXiv:1404.2128, arXiv:1110.0691.

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