Witt groups of smooth projective quadrics

Xie, Heng

doi:10.1016/j.aim.2019.01.038

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学術論文

Witt groups of smooth projective quadrics

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Xie, Heng
Max Planck Institute for Mathematics, Max Planck Society;

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https://doi.org/10.1016/j.aim.2019.01.038
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MPIM Preprint series 2019-2.pdf
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引用

Xie, H. (2019). Witt groups of smooth projective quadrics. Advances in Mathematics, 346, 70-123. doi:10.1016/j.aim.2019.01.038.

引用: https://hdl.handle.net/21.11116/0000-0004-84FD-A

要旨

Let k be a commutative ring containing 1/2 . In this paper, we construct exact sequences connecting Witt groups of smooth projective quadrics over k and Clifford algebras. The exact sequences have an application to a classical problem in quadratic form theory: the Witt kernel of function fields of quadrics. We also apply the exact sequences to compute Witt groups of certain kinds of smooth projective quadrics.