A Fast, Strong, Topologically Meaningful and Fun Knot Invariant

Princeton University Colloquium, February 18, 2026

Abstract. The title covers all the good. The bad is that we don't really understand this invariant $\Theta$. Wait, is that just part of the fun?

Continues Rozansky, Kricker, Garoufalidis, and Ohtsuki, joint with van der Veen.

URL: http://drorbn.net/p26.

Links: APAI DD DHOEBL DK DPG HW Ov Scha TK ap ge24 icbs24

Handout: FSMF.html, FSMF.pdf.

Talk Video (Toronto version).

Sources: pensieve.

38 years apart: