Knot at Lunch on September 18 2008

Invitation

Dear Knot at Lunch People,

We will have our next lunch on Thursday September 18, at the (new and maybe temporary) usual place, the seminar room on the 10th floor of 215 Huron St., at 12 noon.

As always, please bring brown-bag lunch and fresh ideas. The agenda: Krzysztof Putyra will be telling us about Odd Khovanov Homology.

Note that the condition $Z^2=1$ in the handout is not necessary! It is enough that $Z$ be invertible. Note also that contrary to the handout, it is not known that the simultaneous negation of all variables $(X,Y,Z)\to(-X,-Y,-Z)$ acts trivially on homology.