English

Non-contractible Hamiltonian loops in the kernel of Seidel's representation

Symplectic Geometry 2018-03-16 v2

Abstract

The main purpose of this note is to exhibit a Hamiltonian diffeomorphism loop undetected by the Seidel morphism of certain 2-point blow-ups of S2×S2S^2 \times S^2, exactly one of which being monotone. As side remarks, we show that Seidel's morphism is injective on all Hirzebruch surfaces and discuss how to adapt the monotone example to the Lagrangian setting.

Keywords

Cite

@article{arxiv.1602.05787,
  title  = {Non-contractible Hamiltonian loops in the kernel of Seidel's representation},
  author = {Sílvia Anjos and Rémi Leclercq},
  journal= {arXiv preprint arXiv:1602.05787},
  year   = {2018}
}

Comments

13 pages. In the second version the title is changed to emphasize the actual point of the paper and a "background" section is added so the paper is more self-contained