The Kontsevich Weight of a Wheel with Spokes Pointing Outward

by Van den Bergh, Michel

This is a companion note to “Hochschild cohomology and Atiyah classes” by Damien Calaque and the author. Using elementary methods we compute the Kontsevich weight of a wheel with spokes pointing outward. The result is in terms of modified Bernoulli numbers. The same result had been obtained earlier by Torossian (unpublished) and also recently by Thomas Willwacher using more advanced methods.

DOI: 10.1007/s10468-009-9161-6
Online Date: 3/13/2009
Print publication date: 10/1/2009
View article on SpringerLink

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