If M is a compact oriented manifold, then Poincare duality provides an isomorphism between the homology and cohomology of M with values in any abelian group A. In this lecture, I'll describe an analogue of this Poincare duality isomorphism for cohomology with nonabelian coefficients.
Rademacher Lectures
Tuesday, March 13, 2018 - 3:30pm
Jacob Lurie
Harvard University