ST-Knot Invariants
We will discuss various aspects of knot theory, concentrating on polynomial invariants of knots. Such invariants associate a polynomial to an embedded knot which does not depend on the particular presentation of it. The Jones invariant of knots and the categorical version of it, known as the Khovanov invariant, will be the main topic of the course. Khovanov?s invariant is a very strong invariant of the knot: it is shown by Mrowka and Kronheimer that if the Khovanov invariant of a knot is 1, then the knot is the unknot.