Circle-equivariant classifying spaces and the rational equivariant sigma genus
Circle-equivariant classifying spaces and the rational equivariant sigma genus
复制标题
圆等变分类空间和有理等变西格玛属
DOI:
10.1007/s00209-010-0773-7
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发表时间:
2010
影响因子:
0.8
通讯作者:
Ando M
中科院分区:
文献类型:
--
作者:
Ando M
The circle-equivariant spectrumis the equivariant analogue of the cobordism spectrumof stably almost complex manifolds withc1=c2= 0. Given a rational elliptic curveC, Greenlees (Topology 44:1213–1227, 2005) constructs a ring-spectrumECrepresenting the associated-equivariant elliptic cohomology. The core of the present paper is the construction, whenCis a complex elliptic curve, of a map of ring-spectrawhich is the rational equivariant analogue of the sigma orientation of Ando et al. (Invent. Math. 146:595–687, 2001). We support this by a theory of characteristic classes for calculation, and a conceptual description in terms of algebraic geometry. In particular, we prove a conjecture the first author made in Ando (Geom. Topol. 7:91–153, 2003).
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DOI:
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发表时间:
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期刊:
影响因子:
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通讯作者:
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影响因子:
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作者:
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