Description
Speaker: Dr. Brett Parker, Monash University.
Time: 10:30 AM, IST, 24 September 2020 (gate open: 10:20 AM).
Google meet link: meet.google.com/qeh-paqu-yaq.
Phone: (US) +1 276-796-8106 PIN: 654 044 511#.
Title: Tropical counts of Gromov-Witten invariants in dimension 3.
Abstract: Tropical curves appear when we study holomorphic curves under
certain degenerations, or relative to normal-crossing divisors. In many
cases, there is a correspondence between counting tropical curves and
Gromové‚‘itten invariants. In complex dimension 3, this correspondence has
the wonderful feature that each tropical curve corresponds to
Gromové‚‘itten invariants counting curves in all genus. I will illustrate
some examples of this correspondence, including some interesting examples
counting Gromov-Witten invariants in log Calabi-Yau manifolds, where our
tropical curves live in a 3 dimensional integral affine space with
singularities along a 1-dimensional locus.