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The Erwin Schroedinger Institute for Mathematical Physics

Simons Lecture Series: Paul Wedrich (Imperial College London): Knot homologies and higher representation theory

October 17, 2016 -- October 21, 2016, 11:00 a.m.


Knot homologies are the subjects of a young, fast-paced research field at the intersection of low-dimensional topology, representation theory, algebraic and symplectic geometry and mathematical physics. These lectures will introduce knot homologies in the spirit of Khovanov's categorification of the Jones polynomial, with a focus on their relationship to categorified quantum groups. The topics for the five lectures will be roughly as follows: 1) Introduction: Khovanov homology categorifies the Jones polynomial; 2) the representation theory of quantum groups controls the Jones polynomial and its cousins; 3) quantum groups are categorified by diagrammatic Khovanov-Lauda 2-categories; 4) these categorified quantum groups admit 2-representations; 5) such 2-representations enable a universal construction of (generalisations of) Khovanov homology, leading to uniqueness results and exhibiting additional structure relating different knot homologies.

Flyer (pdf)

At a glance

Type: Lecture
When: Oct 17, 2016 to
Oct 21, 2016
Where: ESI, Boltzmann Lecture Hall
Organizers: Nils Carqueville (ESI, U Vienna)
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