Date: August 19, 2026 (Wednesday) at 4PM (UK time)

Speaker: Prof. Marc Lackenby, University of Oxford, UK

Topic: Knots, Links, and Polynomial Bounds

About the Talk: Prof. Marc Lackenby is a leading mathematician in topology, geometry, and group theory, with major contributions to knot theory and low-dimensional topology. In this talk, he will discuss Reidemeister moves, the elementary transformations that relate different diagrams of the same knot or link, and the question of how efficiently one can pass between such diagrams. The talk will highlight his polynomial bounds for simplifying diagrams of the unknot, and explain recent work extending these ideas to every fixed link type. It will also describe the consequences for the computational complexity of recognizing knots and links. See the blog announcement

https://functor.network/user/3333/entry/1896

of this talk for more details.

Link to join: At the scheduled time, joint the talk here: link. No registration required.