© | << < ? > >> | Dror Bar-Natan: Talks:

Two Graduate Student Talks at Waseda University

Talk 1. Cars, Interchanges, Traffic Counters, and some Pretty Darned Good Knot Invariants

On August 21 at 4PM in room 54-202, following a talk given in Nara earlier this month

Abstract. Reporting on joint work with Roland van der Veen, I'll tell you some stories about $\rho_1$, an easy to define, strong, fast to compute, homomorphic, and well-connected knot invariant. $\rho_1$ was first studied by Rozansky and Overbay, it is dominated by the coloured Jones polynomial (but it isn't lesser!), it has far-reaching generalizations, and I wish I understood it.

URL: http://drorbn.net/oa22.

Links: AKT ap APAI AQDW DoPeGDO Dogma FDA J Ov Scha SolvApp

Handout: Cars.html, Cars.pdf.

After-talk writeup (for the version given in Nara): NaraTalkSummary.pdf.

Talk Video (also at YouTube, also @BIRS).

Sources: pensieve.

CMS-2212 version.

Talk 2. Shifted Partial Quadratics, their Pushwards, and Signature Invariants for Tangles

On August 24 at 11AM in room 54-302, following a talk given at ICERM in May 2023

Abstract. Following a general discussion of the computation of zombians of unfinished columbaria (with examples), I will tell you about my recent joint work with Jessica Liu on what we feel is the "textbook" extension of knot signatures to tangles, which for unknown reasons, is not in any of the textbooks that we know.

URL: http://drorbn.net/icerm23.

Handout: PQ.html, PQ.pdf.

Talk Video (also on YouTube, and perhaps a better version at ICERM).

Sources: pensieve.