Event Detail

Event Type: 
Geometry-Topology Seminar
Monday, January 13, 2014 - 04:00
Gilkey 115

Speaker Info

Local Speaker: 

Gabai recently showed that the Whitehead contractible open 3-manifold is a union of two copies of R3 . After describing and exploring topological invariants of nested unions of tori, I will describe two classes of open contractible 3-manifolds. The first infinite class has the double 3-space property described by Gabai. The second infinite class fails to have this property. This is joint work with D. Wright of B.Y.U. and Dušan Repovš of the University of Ljuibljana.