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Shifted Witt groups of semi-local rings

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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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Authors and Affiliations

  1. Department of Mathematics, ETH Zürich, ETH Zentrum, 101, 8092, Zürich, Switzerland

    Paul Balmer

  2. Department of Mathematics, Rice University, 6100 Mark street, Houston, TX, 77005, USA

    Raman Preeti

Authors
  1. Paul Balmer
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  2. Raman Preeti
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Corresponding author

Correspondence to Paul Balmer.

Additional information

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

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