Abstract.
We show that the odd-indexed derived Witt groups of a semi-local ring with trivial involution vanish. We show that this is wrong when the involution is not trivial and we provide examples.
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The first author was supported by the Swiss National Science Foundation, grant 620-66065. The second author would like to thank the ETH-Zurich for its generous support.
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Balmer, P., Preeti, R. Shifted Witt groups of semi-local rings. manuscripta math. 117, 1–27 (2005). https://doi.org/10.1007/s00229-005-0546-5
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DOI: https://doi.org/10.1007/s00229-005-0546-5