Gerstenhaber-Schack diagram cohomology from operadic point of view
arXiv:1101.1896
Abstract
We show that the operadic cohomology for any type of algebras over a non-symmetric operad A can be computed as Ext in the category of operadic A-modules. We use this principle to prove that the Gerstenhaber-Schack diagram cohomology is operadic cohomology.
37 pages