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Dror Bar-Natan:
Talks:

# Some Feynman Diagrams in Algebra

### Columbia University, November 25, 2019.

**Abstract.** I will explain how the computation of compositions of
maps of a certain natural class, from one polynomial ring into another,
naturally leads to a certain composition operation of quadratics and to
Feynman diagrams. I will also explain, with very little detail, how this
is used in the construction of some very well-behaved poly-time computable
knot polynomials.

Joint work with Roland van der Veen.

**Handout:**
FDA.html,
FDA.pdf,
FDA.png.

**Talk Video** (at UCLA).

**Links:**
Ov
akt
hm
sl2

**Sources:** pensieve.