GT Seminar with Marco Golla (Nantes university)
- Date: 10 November 2022, 13:15–14:15
- Location: Ångström Laboratory, room Å64119 and on zoom https://uu-se.zoom.us/j/68210068219
- Type: Seminar
- Lecturer: Marco Golla (Nantes university)
- Organiser: Matematiska institutionen
- Contact person: Noémie Legout
Welcome to this seminar held by Marco Golla (Nantes university) with title "Alexander polynomials and symplectic curves in CP^2".
Abstract: Libgober defined Alexander polynomials of (complex) plane projective
curves and showed that it detects Zariski pairs of curves: these are
curves with the same singularities but with non-diffeomorphic
complements. He also proved that the Alexander polynomial of a curve
divides the Alexander polynomial of its link at infinity and the product
of Alexander polynomials of the links of its singularities. We extend
Libgober's definition to the symplectic case and prove that the
divisibility relations also hold in this context. This is work in
progress with Hanine Awada.
See upcoming seminars in our seminar series on Geometry and Topology (GT).