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math.AG1999
Deformations of homotopy algebras
V. Hinich
Let be a field of characteristic zero, $\CO$ be a dg operad over and let be an $\CO$-algebra. In this note we define formal deformations of , construct the deformati…
math.AG1998
DG coalgebras as formal stacks
V. Hinich
The category of unital (unbounded) dg cocommutative coalgebras over a field of characteristic zero is provided with a structure of simplicial closed model category. This generalize…