In about 23 hours, I’ll step on to the train in Jena, heading for T’bilisi, Georgia.

On Monday, I’ll give a talk on my research into -structures in group cohomology. If you’re curious, I already put the slides up on the web.

I’ll try to blog from T’bilisi, but I don’t know what connectivity I’ll have at all.

I’m about a week too late, but I don’t agree with your statement on p. 16 of the notes that if H is a subgroup of G, then the induced map on cohomology is surjective. (Consider C_2 inside C_4.) Maybe the lack of surjectivity makes it easier to understand the induced map of A-infinity algebras?