Lower bound on the minimal number of periodic Reeb orbits

Series: 
Geometry Topology Seminar
Wednesday, April 12, 2017 - 14:05
1 hour (actually 50 minutes)
Location: 
Skiles 006
,  
UGA
Organizer: 
I will present the recent result with P.Albers and D.Hein that every graphical hypersurface in a prequantization bundle over a symplectic manifold M pinched between two circle bundles whose ratio of radii is less than \sqrt{2} carries either one short simple periodic orbit or carries at least cuplength(M)+1 simple periodic Reeb orbits.