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The general dévissage theorem for Witt groups of schemes

✍ Scribed by Stefan Gille

Book ID
105755550
Publisher
Springer
Year
2007
Tongue
English
Weight
188 KB
Volume
88
Category
Article
ISSN
0003-889X

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📜 SIMILAR VOLUMES

A zero theorem for the transfer of coher
A zero theorem for the transfer of coherent Witt groups
✍ Stefan Gille; Jens Hornbostel 📂 Article 📅 2005 🏛 John Wiley and Sons 🌐 English ⚖ 173 KB

## Abstract Let __R__ be a Gorenstein ring of finite Krull dimension and __t__ ∈ __R__ a regular element. We show that if the quotient map __R__ → __R/Rt__ has a flat splitting then the transfer morphism of coherent Witt groups Tr~(__R/Rt__)/__R__~ : $ \widetilde W^{i} $(__R/Rt__) → $ \widetilde W^