Abstract: In 1989 Witten used ideas coming from gauge theory to give
topological invariants of links and 3-manifolds; however his ideas
were not mathematically sound. I will discuss his original approach
and define rigorously the colored Jones function, which is the most
important invariant in Witten's framework.
Prerequisiti: Differential manifolds and forms, basic algebraic topology.
Sito web: http://people.dm.unipi.it/babygeometri/