Extensions in MHM and Hain's Biextension Line Bundle - Part 1

Explore a detailed lecture on the biextension line bundle L and its extensions in complex geometry. Delve into the work of Greg Pearlstein and his collaborators, examining the algebraic structure and canonical extension of L as a Q-line bundle. Learn about the topological invariants associated with normal functions and their historical significance in the field. Gain insights into the formula for the Q-line bundle and its implications for understanding complex manifolds and projective varieties. This 49-minute talk, presented by Greg Pearlstein from Texas A&M University at the University of Miami, offers a deep dive into advanced topics in algebraic geometry and complex analysis.