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Relative (non-)formality of the little cubes operads and the algebraic Schoenflies theorem

Victor Tourtchine, Thomas Willwacher

30/8/14 Published in : arXiv:1409.0163

It is shown that the operad maps E_n→E_{n+k} are formal over the reals for k≥2 and non-formal for k=1. Furthermore we compute the cohomology of the deformation complex of the operad maps E_n→E_{n+1}, proving an algebraic version of the Schoenflies theorem.

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N-body methods for relativistic cosmology

Complex Quantum Chern-Simons

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