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math.CT2006
What do DG categories form?
Dmitry Tamarkin
We introduce a homotopy 2-category structure on the category of 2-categories.
math.KT2006
The homotopy Gerstenhaber algebra of Hochschild cochains of a regular algebra is formal
Vasiliy Dolgushev, Dmitry Tamarkin, Boris Tsygan
The solution of Deligne's conjecture on Hochschild cochains and the formality of the operad of little disks provide us with a natural homotopy Gerstenhaber algebra structure on the…