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arXiv 1004.2142math.DGmath.AT
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Chern数与某些elliptic differential operators的指数

Chern numbers and the indices of some elliptic differential operators

Ping Li

摘要:

Libgober和Wood证明了$n$维紧致复流形的Chern数$c_{1}c_{n-1}$可以由它的Hirzebruch $χ_{y}$ -亏格决定.受他们证明思想的启发,我们证明了,对于紧的,自旋的,殆复流形,更多的陈数可以由一些扭曲狄拉克和签名算子的指数来确定。作为副产品,我们得到了这样的流形的某些示性数的整除性结果。利用我们的方法,我们给出了Libgober-Wood的结果的一个直接证明,这个结果最初是用归纳法证明的。

英文摘要:

Libgober and Wood proved that the Chern number $c_{1}c_{n-1}$ of a $n$-dimensional compact complex manifold can be determined by its Hirzebruch $χ_{y}$-genus. Inspired by the idea of their proof, we show that, for compact, spin, almost-complex manifolds, more Chern numbers can be determined by the indices of some twisted Dirac and signature operators. As a byproduct, we get a divisibility result of certain characteristic number for such manifolds. Using our method, we give a direct proof of Libgober-Wood's result, which was originally proved by induction.

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。

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