arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 1003.0067math.DGmath.APmath.AT
收藏

特征类与零阶伪微分算子

Characteristic Classes and Zeroth Order Pseudodifferential Operators

Andrés Larrain-Hubach, Steven Rosenberg, Simon Scott, Fabián Torres-Ardila

摘要:

证明了Wodzicki-Chern类对所有以可逆零阶伪微分算子群Z为结构群的丛为零的猜想.特别地,我们证明了这种消失,如果结构群减少到伪微分算子的领导阶符号的单位。首阶Chern类一般是非零的,它们检测分类空间BZ的de Rham上同调群的元素。

英文摘要:

We provide evidence for the conjecture that the Wodzicki-Chern classes vanish for all bundles with the group Z of invertible zeroth order pseudodifferential operators as structure group. In particular, we prove this vanishing if the structure group reduces to pseudodifferential operators with leading order symbol the identity. The leading order Chern classes are nonzero in general, and they detect elements of the de Rham cohomology groups of the classifying space BZ.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑