10.07.2025, 16:15
– Raum 1.22
Forschungsseminar Differentialgeometrie
Cancellation properties of exotic 4-dimensional positive scalar curvature metrics
Johannes Ebert (Münster)
Some basic notions from Lorentzian geometry are reviewed. In particular causality relations are explained, Cauchy hypersurfaces and the concept of global hyperbolic manifoldes are introduced. Finally, the structure of globally hyperbolic manifolds is discussed.