Anand Dessai (University of Fribourg)

Title

Manifolds which carry infinitely many geometrically distinct metrics of positive Ricci or nonnegative sectional curvature

Abstract

Let us call two metrics of positive Ricci (resp. nonnegative sectional) curvature on a closed manifold M geometrically distinct if they represent different components in the moduli space of all metrics of positive Ricci (resp. nonnegative sectional) curvature of M. Manifolds which carry infinitely many geometrically distinct metrics of positive Ricci or nonnegative curvature have been exhibited in all odd high dimensions and more recently also in some even dimensions. In my talk I will survey results in this direction and discuss invariants used to distinguish these metrics.

Schedule
09:30-11:00 RTG lecture 1 (Marc Kegel), SR. 2.058
11:00-11:30 Get-Together with Speaker, SR. 2.058
11:45-12:45 Colloquium: Anand Dessai, SR. 1.067
13:15 Lunch at Max Rubner Institute | Daily Menu
14:30 Coffee in math building, SR. 1.058
14:45-15:15 Informal meeting of PhD students, Room 1.062
15:15-16:45 RTG lecture 2 (Thorben Kastenholz), SR. 1.067

KA