Knot at Lunch on January 16 2008

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Dear Knot at Lunch People,

We will have our next lunch on Wednesday January 16, at the usual place, Bahen 6180, at 12 noon. Note that this is right after Shlomo Sternberg's third lecture at the Fields Institute, which I (Dror) will be attending, so I may be a bit late. (The first is Monday at 11:30; see

As always, please bring brown-bag lunch and fresh ideas. The agenda: we may continue to talk about Hutchings' work on step-by-step integration of weight systems (see Hutchings' Integration of singular braid invariants and graph cohomology, Transactions of the AMS 350 (1998), 1791-1809 and my aborted Finite Type Invariants by the Species), or we may talk about something else.

Further information about this meeting will/may appear at

As always, if you know anyone I should add to this mailing list or if you wish to be removed from this mailing list please let me know. To prevent junk accumulation in mailboxes, I will actively remove inactive people unless they request otherwise.



Some Content

Here are some relevant formulas, reproduced from my aborted Finite Type Invariants by the Species: