A conjecture of Akbulut and Kirby from 1978 states that the concordance class of a knot is determined by its 0-surgery.

# Topology Seminar

For more information about this seminar, contact Zoltan Szabo, David Gabai, Adam Levine, Francesco Lin or Peter Ozsvath.

**Please click on seminar title for complete abstract.**

##### Knot traces and concordance

University of Texas, Austin

##### Embedding problems in affine algebraic geometry and slice knots

We first discuss classical questions about polynomial embeddings of the complex line C into complex spaces such as C^m and affine algebraic groups. Next, we consider knots and different notions of sliceness for knots.

Max Planck Institute for Mathematics

##### TBA - Genevieve Walsh

Tufts University

##### Free Seifert fibered pieces of pseudo-Anosov flows

We prove a structure theorem for pseudo-Anosov flows restricted to Seifert fibered pieces of three manifolds. The piece is called periodic if there is a Seifert fibration so that a regular fiber is freely homotopic, up to powers, to a closed orbit of the flow.

Florida State University

##### TBA - Boris Botvinnik

**This is a joint Algebraic Topology / Topology seminar. **

University of Oregon

##### TBA - Boris Botvinnik

**This is a joint Topology / Algebraic Topology seminar.**

University of Oregon

##### TBA - John Pardon

Princeton University