Algebraic Geometry Seminar
Aaron Pixton
Princeton University
Divisors on the moduli space of stable n-pointed curves of genus 0
Abstract: I'll discuss various conjectures about divisors on
$\overline{M}_{0,n}$ and describe a counterexample to one of them: it
is not true that every nef divisor is numerically equivalent to an
effective sum of boundary divisors. The counterexample is
combinatorial in nature and is closely related to the (11, 5, 2)
biplane.
Wednesday November 16, 2011 at 4:00 PM in SEO 427