Extended Torelli map to the Igusa blowup in genus 6, 7, and 8

Valery Alexeev, Ryan Livingston, Joseph Tenini +7

It was conjectured in \cite{Namikawa_ExtendedTorelli} that the Torelli map $M_g\to A_g$ associating to a curve its jacobian extends to a regular map from the Deligne-Mumford moduli…