This week's seminars
Pure Maths Colloquium: Signatures in knot theory
28 January 2019 16:00 in CM219
This talk will consist of an introduction to the Levine-Tristram signature of a knot. After providing some definitions, we will investigate the following questions : How many crossing changes does it take to unknot a knot? What is the minimal genus of a surface bounded by a knot in the 4-ball? Can a knot be isotopic to its mirror image?
Contact email@example.com for more information