Locally conformally symplectic non-squeezing conjecture

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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 R≥1R\geq 1, there is no compactly supported Hamiltonian lcs map

ϕ:R2n×S1×S1→R2n×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.

References

Primary source

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

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