Geometric description of the connecting homomorphism for Witt groups

  • Paul Balmer

  • Baptiste Calmès

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Abstract

We give a geometric setup in which the connecting homomorphism in the localization long exact sequence for Witt groups decomposes as the pull-back to the exceptional fiber of a suitable blow-up followed by a push-forward.

Cite this article

Paul Balmer, Baptiste Calmès, Geometric description of the connecting homomorphism for Witt groups. Doc. Math. 14 (2009), pp. 525–550

DOI 10.4171/DM/281