arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1904.04069math.KTmath.DGmath.OA
收藏

李流形K-同调的几何方法

A geometric approach to K-homology for Lie manifolds

Karsten Bohlen, Jean-Marie Lescure

摘要:

我们表明,计算的Fredholm指数的一个完整的椭圆型伪微分算子的积分李流形上可以减少到一个狄拉克算子的指数的计算,扰动的光滑算子,正则相关,通过所谓的离合器映射。为此,我们适应我们的框架思想来自鲍姆-道格拉斯几何$K$ -同调,特别是我们引入了几何循环的概念,可以归类为著名的几何$K$ -同调群的一个变体,这里的具体情况。我们还定义了这个几何$K$ -同调论和一个相对的$K$ -理论群,直接与一个完全椭圆型伪微分算子之间的比较映射。

英文摘要:

We show that the computation of the Fredholm index of a fully elliptic pseudodifferential operator on an integrated Lie manifold can be reduced to the computation of the index of a Dirac operator, perturbed by a smoothing operator, canonically associated, via the so-called clutching map. To this end we adapt to our framework ideas coming from Baum-Douglas geometric $K$-homology and in particular we introduce a notion of geometric cycles, that can be categorized as a variant of the famous geometric $K$-homology groups, for the specific situation here. We also define a comparison map between this geometric $K$-homology theory and a relative $K$-theory group, directly associated to a fully elliptic pseudodifferential operator.

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。

↑