Perfecting the nearly perfect

被引:0
|
作者
Burns, David [1 ]
机构
[1] Kings Coll London, Dept Math, London WC2R 2LS, England
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中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
We introduce a natural variant of the notion of nearly perfect complex. We show that this variant gives rise to canonical perfect complexes and prove several useful properties of this construction (including additivity of the associated Euler characteristics oil suitable exact triangles). We then apply this approach to complexes arising from the etale cohomology of G(m) on arithmetic surfaces and discuss links to Lichtenbaum's theory of cohomology.
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页码:1041 / 1058
页数:18
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