learning seminars

constructions of four-manifolds, spring 2018

Constructions discussed:

• broken Lefshetz fibrations, this section led by Alex Moody
• surgery on surfaces, led by me
• Fintushel-Stern knot surgery, led by Duncan McCoy
• cork twisting, led by Allison N. Miller

more detailed schedule to follow

characterizing slopes, fall 2017

co-organized with Duncan McCoy

Main reference: Every knot has characterizing slopes- Lackenby

9/8 Duncan McCoy-Introduction, main definitions, history/literature

9/15 Martin Bobb -crash course in hyperbolic 3-manifolds

9/22 Hannah Turner -Section 3

9/29 Alex Moody-More about JSJ, get through end of section 4

10/6 Ahmad Issa- Section 5

10/13 Jonathan Johnson- Section 6, lemma 6.1 and proof of Theorem 1.1 for Y' Seifert fibered

10/27 Lisa Piccirillo - Theorem 1.1 for Y' hyperbolic

11/11 Duncan McCoy- revisiting foundations of JSJ decompositions

11/15 Max Riestenberg- more on JSJ