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arXiv · 1304.5922

Units in Grothendieck-Witt rings and A^1-spherical fibrations

Matthias Wendt
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Abstract

In this note, we show that the units in Grothendieck-Witt rings extend to an unramified strictly A^1-invariant sheaf of abelian groups on the category of smooth schemes. This implies that there is an A^1-local classifying space of spherical fibrations.

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Matthias Wendt. 2013-04-22. Units in Grothendieck-Witt rings and A^1-spherical fibrations. https://arxiv.org/abs/1304.5922

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