# Knot at Lunch

These are weekly over-lunch knot theory meetings held at the University of Toronto.

## Future Agendas Queue

The below are possible agendas for future meetings, roughly ordered by priority. Though the general principle will remain, that the whims of the moment always trump long term planning.

• Drinfel'd's theorem on special derivations (see Drinfel'd's On quasitriangular Quasi-Hopf algebras and a group closely connected with $\operatorname{Gal}(\bar{{\Bbb Q}}/{\Bbb Q})$, Leningrad Math. J. 2 (1991) 829-860, though I wouldn't be surprised if the theorem is actually older).
• Can you prove that ${\mathcal A}^\mbox{hor}$ injects into ${\mathcal A}^\mbox{trees}$?