Locally conformally symplectic non-squeezing conjecture

Let (R2n×S1×S1,ω)(\mathbb{R}^{2n} \times S^1 \times S^1,\omega) be the locally conformally symplectic manifold considered in the paper, and let BRB_R be the radius-RR ball in R2n\mathbb{R}^{2n}. Set

U:=BR×S1×S1,U:=B_R\times S^1\times S^1,

and let U\overline{U} denote its topological closure. A Hamiltonian lcs map is a locally conformally symplectic diffeomorphism generated by a smooth Hamiltonian function through the locally conformally symplectic Hamiltonian vector field.

Locally conformally symplectic non-squeezing conjecture. If R1R\geq 1, there is no compactly supported Hamiltonian lcs map

ϕ:R2n×S1×S1R2n×S1×S1\phi:\mathbb{R}^{2n}\times S^1\times S^1\to\mathbb{R}^{2n}\times S^1\times S^1

such that ϕ(U)U\phi(\overline{U})\subset U.

This is proposed as a direct generalization of the contact non-squeezing theorem to the locally conformally symplectic setting. The supplied text does not state whether the conjecture has been proved or disproved.

Sources & referencesView supporting material

Primary source

Yasha Savelyev, “Locally conformally symplectic deformation of Gromov non-squeezing”, arXiv:2208.09404 (2023).

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