Mathematics – Algebraic Topology
Scientific paper
2006-10-30
Mathematics
Algebraic Topology
14 pages
Scientific paper
We show that the sum over planar trees formula of Kontsevich and Soibelman transfers C-infinity structures along a contraction. Applying this result to a cosimplicial commutative algebra A^* over a field of characteristic zero, we exhibit a canonical unital C-infinity structure on Tot(A^*), which is unital if A^* is; in particular, we obtain a canonical C-infinity structure on the cochain complex of a simplicial set.
Cheng Xue Zhi
Getzler Ezra
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