Title: Tropical curves and Gromov-Witten invariants

Time: Thursday November 3, 2011, 15:00-17:00 pm

Venue: Room 09 at Quan-Zhai ( 全斋), New location for BICMR, Peking University

Speaker: Professor Brett Parker (Australian National University and Max Plank Institute for Mathematcs at Bonn)

Abstract: I will describe how tropical curves appear whenever we study holomorphic curves in normal crossing degenerations, and give a gluing formula for Gromov-Witten invariants which involves a sum of relative Gromov-Witten invariants over tropical curves.