On the 2-compact group DI(4)
On the 2-compact group DI(4)
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关于 2-紧群 DI(4)
DOI:
10.1515/crll.2003.010
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发表时间:
2003
期刊:
影响因子:
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通讯作者:
D. Notbohm
中科院分区:
文献类型:
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作者:
D. Notbohm
Besides the simple connected compact Lie groups there exists one further simple connected 2-compact group, constructed by Dwyer and Wilkerson, the group DI(4). The mod-2 cohomology of the associated classifying space BDI(4) realizes the rank 4 mod-2 Dickson invariants. We show that mod-2 cohomology determines the homotopy type of the space BDI(4) and that the maximal torus normalizer determines the isomorphism type of DI(4) as 2-compact group. We also calculate the set of homotopy classes of self maps of BDI(4).