Nisnevich descent for K -theory of Deligne-Mumford stacks

Nisnevich descent for K -theory of Deligne-Mumford stacks
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K 的 Nisnevich 下降 - Deligne-Mumford 堆栈理论

DOI:
10.1017/is011006028jkt161
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发表时间:
2012
影响因子:
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通讯作者:
P. A. Østvær
P. A. Østvær
中科院分区:
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文献类型:
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作者:
A. Krishna;P. A. Østvær

文献摘要

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我们显示本地化,切除和下降定理的K -理论的Deligne-Mumford堆栈。我们的方法采用的Nisnevich网站,这是一个完整的,定期和有界的CD -结构的类别,这样的堆栈和限制到通常的Nisnevich网站的计划。通过结合切除与细化的本地化序列由于克里希纳和Toen,我们表明,K -理论的完美配合物驯服德利涅-芒福德堆栈满足尼斯涅维奇下降。
We show localization, excision and descent theorems for K -theory of Deligne-Mumford stacks. Our approach employs the Nisnevich site which is a complete, regular and bounded cd -structure on the category of such stacks and restricts to the usual Nisnevich site on schemes. By combining excision with a refinement of localization sequences due to Krishna and Toen, we show that K -theory of perfect complexes on tame Deligne-Mumford stacks satisfies Nisnevich descent.