Speaker: Sergey Galkin

Title: Monotone Lagrangian tori in the plane

Date: Oct 2, 2014, 11:30-12:30

Place: Eilat

Abstract:

This is a joint work with Grigory Mikhalkin.
Earlier with Alexander Usnich and John Alexander Cruz Moralez I put a conjecture
that to each Q-Gorenstein toric degeneration of a complex projective plane
one can associate a monotone Lagrangian torus, and gave a formula for numbers
of pseudo-holomorphic discs bounded on each of these tori. Now using tropical geometry
we give a construction of these tori and prove that the Laurent polynomials
proposed earlier indeed count pseudo-holomorphic discs on these tori.