Tuesday February 06, 2018 4:00 PM  5:30 PM Math Tower P131
 Jingrui Cheng, University of Wisconsin, Madison
On constant scalar curvature Kaehler metricsThis is a continuation of Chen's colloquium on Feb 1st.

Tuesday February 13, 2018 4:00 PM  5:30 PM Math Tower P131
 Pan Jiayin, Rutgers
Nonnegative Ricci curvature, stability at infinity, and finite generation of fundamental groupsAbstract: In 1968, Milnor conjectured that any open nmanifold $M$ of nonnegative Ricci curvature has a finitely generated fundamental group. This conjecture remains open today. In this talk, we show that if there is an integer $k$ such that any tangent cone at infinity of the Riemannian universal cover of $M$ is a metric cone, whose maximal Euclidean factor has dimension $k$, then $π_1(M)$ is finitely generated. In particular, this confirms the Milnor conjecture for a manifold whose universal cover has Euclidean volume growth and unique tangent cone at infinity.

Tuesday March 06, 2018 4:00 PM  5:30 PM Math Tower P131
 Mark Stern, Duke University
TBA

Tuesday March 20, 2018 4:00 PM  5:30 PM Math Tower P131
 Bianca Santoro, City College
TBA

Tuesday April 17, 2018 4:00 PM  5:30 PM Math Tower P131
 John Alex Cruz Morales, Universidad Nacional. Colombia, South America
Quantum cohomology of Grassmannians and Lefschetz exceptional collections.

