Simon Felten, Columbia University: Global logarithmic deformation theory 2

Simon Felten, Columbia University: Global logarithmic deformation theory 2
In this series of two lectures, we explain how a curved dg Lie algebra controls infinitesimal deformations of logarithmic varieties, why these deformations are unobstructed for logarithmic Calabi-Yau varieties, and how this unobstructedness allows us to construct smoothings of not necessarily d-semistable normal crossing spaces.