Doubly slice Montesinos links

Series
Geometry Topology Seminar Pre-talk
Time
Monday, April 1, 2019 - 12:45pm for 1 hour (actually 50 minutes)
Location
Skiles 006
Speaker
Ahmad Issa – University of Texas, Austin
Organizer
Jennifer Hom

A link in the 3-sphere is doubly slice if it is the cross-section of an unknotted 2-sphere in the 4-sphere. The double branched cover of a doubly slice link is a 3-manifold which embeds in the 4-sphere. For doubly slice Montesinos links, this produces embeddings of Seifert fibered spaces in S^4. In this pre-talk, I'll discuss a construction and an obstruction to being doubly slice.