Guoliang Yu

https://www.math.tamu.edu/~guoliangyu/

An index theorem for manifolds with polyhedral boundary and scalar curvature rigidity

I will explain how to apply an index theorem for Dirac operators on manifolds with polyhedral boundary to solve Gromov’s dihedral extremality conjecture on scalar curvature for polyhedra.  This is joint work with Jinmin Wang and Zhizhang Xie.