Differential characters and the Steenrod squares

Differential characters and the Steenrod squares
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微分特征和 Steenrod 平方

DOI:
10.2969/aspm/05210297
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发表时间:
2004
期刊:
arXiv: Algebraic Topology
影响因子:
--
通讯作者:
Kiyonori Gomi
Kiyonori Gomi
中科院分区:
--
文献类型:
--
作者:
Kiyonori Gomi

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Cheeger和Simons的微分特征群具有自然的乘法结构。由2k阶微分字符的平方所给出的二次映射可化为普通上同调群的同态。我们通过2k次的Steenrod平方运算证明了在2k+1次上同态上的同态因子。我们还在微分特征的背景下实现了其他偶数次Steenrod平方运算。
The groups of differential characters of Cheeger and Simons admit a natural multiplicative structure. The quadratic map given by the square of a differential character of degree 2k reduces to a homomorphism of the ordinary cohomology groups. We prove that the homomorphism factors through the Steenrod squaring operation of degree 2k on the cohomology of degree 2k+1. We also realize the other Steenrod squaring operations of even degree in a context of differential characters.
物理学家的拓扑、范畴论和微分几何
DOI: --
发表时间: 2006
期刊:
影响因子: --
作者:
S.;Tanimura
通讯作者: Tanimura