**SMS scnews item created by Boris Lishak at Thu 12 Sep 2019 1519**

Type: Seminar

Distribution: World

**Calendar1: 16 Sep 2019 1200-1300**

**CalLoc1: Carslaw 273**

CalTitle1: Bar-Natan -- Algebraic Knot Theory

Auth: borisl@dora.maths.usyd.edu.au

### Geometry and Topology Seminar

# Algebraic Knot Theory

### Dror Bar-Natan (Toronto)

September 16, 12:00-13:00 in Carslaw 273
Seminar schedule

Please join us for lunch after the talk.

**Abstract:**
This will be a very "light" talk: I will explain why about 13 years ago, in order to have a say on some problems in knot theory, I've set out to find tangle invariants with some nice compositional properties. In later talks in different seminars here in Sydney I will explain how such invariants were found - though they are yet to be explored and utilized.