arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2103.11413math.ATmath.GT
收藏

关于$24$维弦流形的示性数

On characteristic numbers of $24$ dimensional String manifolds

Fei Han, Ruizhi Huang

摘要:

本文研究了$24$维弦流形的Pontryagin数.特别是,我们发现一个整基上的字符串cobrodism组在尺寸$24$,Mahowald霍普金斯\cite{MH02},Borel Hirzebruch \cite{BH58}和墙\cite{Wall62}的工作的基础上。这对流形的各种示性数的整除性有直接的应用。特别地,我们建立了签名和与Hopkins-Singer \cite{HS05}的积分Wu类耦合的修正签名的$2$ -准素整除性,以及扭曲签名的$3$ -准素整除性.我们的研究结果提供了潜在的线索,以了解Teichner的问题。

英文摘要:

In this paper, we study the Pontryagin numbers of $24$ dimensional String manifolds. In particular, we find representatives of an integral basis of the String cobrodism group at dimension $24$, based on the work of Mahowald-Hopkins \cite{MH02}, Borel-Hirzebruch \cite{BH58} and Wall \cite{Wall62}. This has immediate applications on the divisibility of various characteristic numbers of the manifolds. In particular, we establish the $2$-primary divisibilities of the signature and of the modified signature coupling with the integral Wu class of Hopkins-Singer \cite{HS05}, and also the $3$-primary divisibility of the twisted signature. Our results provide potential clues to understand a question of Teichner.

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。

↑