English

On a question of Dusa McDuff

Symplectic Geometry 2007-05-23 v1

Abstract

Consider the 2n2n-dimensional closed ball BB of radius 1 in the 2n2n-dimensional symplectic cylinder Z=D×R2n2Z = D \times R^{2n-2} over the closed disc DD of radius 1. We construct for each ϵ>0\epsilon >0 a Hamiltonian deformation ϕ\phi of BB in ZZ of energy less than ϵ\epsilon such that the area of each intersection of ϕ(B)\phi (B) with the disc D×{x}D \times \{x\}, xR2n2x \in R^{2n-2}, is less than ϵ\epsilon.

Keywords

Cite

@article{arxiv.math/0201006,
  title  = {On a question of Dusa McDuff},
  author = {Felix Schlenk},
  journal= {arXiv preprint arXiv:math/0201006},
  year   = {2007}
}

Comments

27 pages, 9 figures

R2 v1 2026-07-22T16:42:28.657Z