Vanishing of negative \(K\)-theory in positive characteristic (Q2921073)
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scientific article; zbMATH DE number 6349700
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Vanishing of negative \(K\)-theory in positive characteristic |
scientific article; zbMATH DE number 6349700 |
Statements
30 September 2014
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negative \(K\)-theory
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homotopy \(K\)-theory
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alterations
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0.94944847
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0.93587095
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0.9276229
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0.9220743
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0.91391104
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0.90666413
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0.89783865
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0.8850882
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Vanishing of negative \(K\)-theory in positive characteristic (English)
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Let \(K_n\) be the \(K\)-theory of Bass-Thomason-Trobaugh, and let \(X\) be a quasi-excellent noetherian scheme. The main result is that \(K_n (X) \otimes \mathbb{Z}[1/p] =0\) for \(n < - \dim X\) and a prime \(p\) that is nilpotent on \(X\). The proof reduces the statement to the vanishing of the homotopy \(K\)-theory of Weibel. To prove this vanishing result, the author uses recent work of \textit{D.-Ch. Cisinski} [Ann. Math. (2) 177, No. 2, 425--448 (2013; Zbl 1264.19003)] in conjunction with a theorem of \textit{O. Gabber}, ``Finiteness theorems for étale cohomology of excellent schemes'', in: Conference in honor of P. Deligne on the occasion of his 61st birthday, IAS, Princeton, October 2005 (2005)] on alterations as a replacement for resolution of singularities.
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