Smooth structures on Q-homology real projective 4-spacesMPIM

by Rafael Torres (SISSA, Trieste)

Tuesday Jul 22, 2025, 11:00 AM → 12:00 PM Europe/Berlin

MPIM, Vivatsgasse, 7 - Seminar Room (Max Planck Institute for Mathematics)

Low-dimensional topology seminar

In this talk, we describe a construction of closed 4-manifolds with finite fundamental group and the rational homology of RP^4. These new families of 4-manifolds include non-smoothable examples and inequivalent smooth structures. Joint work with Valentina Bais.