Cyclic cohomology of etale groupoids

Cyclic cohomology of etale groupoids
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etale群胚的循环上同调

DOI:
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发表时间:
1994
期刊:
影响因子:
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通讯作者:
Victor Nistor
Victor Nistor
中科院分区:
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文献类型:
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作者:
J.;Victor Nistor

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推广了cones关于由分离图叶生成的光滑代数的循环上同群的计算。我们通过这些群发现了叶理的特征类因子。我们的结果也解释了Atiyah和Segal在循环同调背景下关于轨道欧拉特性的一些结果。
We extend Connes’s computation of the cyclic cohomology groups of smooth algebras arising from foliations with separated graphs. We find that the characteristic classes of foliations factor through these groups. Our results also explain some results of Atiyah and Segal on orbifold Euler characteristic in the setting of cyclic homology.