Topology & Geometry Seminar

Friday 8/5, M2 and online,  15.00-16.00

P. Capovilla (University of Cyprus), Aspherical 4-manifolds with positive Euler characteristic

Abstract: I will present an explicit construction of closed oriented aspherical smooth 4-manifolds realizing every non-negative Euler characteristic. This family of manifolds saturates the Hopf-Thurston conjecture on the Euler characteristic
of aspherical manifolds, as well as the Gromov-Lück inequality on their geography.

https://authgr.zoom.us/j/97507580140?pwd=RZuHVbcHVFdbAQZnQpB8MNlkuXomNX.1