A higher-dimensional Contou-Carr\`ere symbol: local theory
Abstract
We construct a higher-dimensional Contou-Carr\`ere symbol and we study its various fundamental properties. The higher-dimensional Contou-Carr\`ere symbol is defined by means of the boundary map for K-groups. We prove its universal property. We provide an explicit formula for the higher-dimensional Contou-Carr\`ere symbol over Q and we prove integrality of this formula. A relation with the higher-dimensional Witt pairing is also studied.
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