K-theory, reality, and duality
K-theory, reality, and duality
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K理论、现实和二元性
DOI:
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发表时间:
2014
期刊:
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通讯作者:
Vesna Stojanoska
中科院分区:
文献类型:
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作者:
Drew Heard;Vesna Stojanoska
We present a new proof of Anderson's result that the real K -theory spectrum is Anderson self-dual up to a fourfold suspension shift; more strongly, we show that the Anderson dual of the complex K -theory spectrum KU is C 2 -equivariantly equivalent to Σ 4 KU , where C 2 acts by complex conjugation. We give an algebro-geometric interpretation of this result in spectrally derived algebraic geometry and apply the result to calculate 2-primary Gross-Hopkins duality at height 1. From the latter we obtain a new computation of the group of exotic elements of the K (1)-local Picard group.