Simple homotopy type of the Hamiltonian Floer complex

  • Date: –11:15
  • Location: Ångströmlaboratoriet, Lägerhyddsvägen 1 2002
  • Lecturer: Sebastian Pöder Balkeståhl
  • Organiser: Matematiska institutionen
  • Contact person: Thomas Kragh
  • Licentiatseminarium

Abstract: For an aspherical symplectic manifold M, closed or with convex contact boundary, and with vanishing first Chern class, a Floer chain complex is defined for Hamiltonians linear at infinity with coefficients in the group ring of the fundamental group of M. For two non-degenerate Hamiltonians of the same slope continuation maps are shown to be simple homotopy equivalences. As a corollary the number of contractible Hamiltonian orbits of period 1 can be bounded from below.