Save Big on Coursera Plus. 7,000+ courses at $160 off. Limited Time Only! Grab it Watch a lecture from the Combinatorics of Fundamental Physics Workshop featuring Brown University's Melody Chan exploring Hopf Algebras in the Cohomology of A_g. Delve into advanced mathematical concepts during this hour-long presentation delivered at the Institute for Advanced Study's Wolfensohn Hall, where complex algebraic structures and their relationships to cohomology theory are examined in detail.