Journal of Noncommutative Geometry


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Volume 11, Issue 2, 2017, pp. 703–740
DOI: 10.4171/JNCG/11-2-8

Published online: 2017-06-29

Factorization homology and calculus à la Kontsevich Soibelman

Geoffroy Horel[1]

(1) Universität Münster, Germany

We use factorization homology over manifolds with boundaries in order to construct operations on Hochschild cohomology and Hochschild homology. These operations are parametrized by a colored operad involving disks on the surface of a cylinder defined by Kontsevich and Soibelman. The formalism of the proof extends without difficulties to a higher dimensional situation. More precisely, we can replace associative algebras by algebras over the little disks operad of any dimensions, Hochschild homology by factorization (also called topological chiral) homology and Hochschild cohomology by higher Hochschild cohomology. Our result works in categories of chain complexes but also in categories of modules over a commutative ring spectrum giving interesting operations on topological Hochschild homology and cohomology.

Keywords: Factorization homology, non-commutative calculus, Hochschild (co)homology, little disk operad, Swiss-cheese operad

Horel Geoffroy: Factorization homology and calculus à la Kontsevich Soibelman. J. Noncommut. Geom. 11 (2017), 703-740. doi: 10.4171/JNCG/11-2-8