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 1502.07202math.DS
收藏

正交群中Kontsevich-Zorich上循环的四元数覆盖与单值性

Quaternionic covers and monodromy of the Kontsevich-Zorich cocycle in orthogonal groups

Simion Filip, Giovanni Forni, Carlos Matheus

摘要:

我们给出了一个例子,Teichmüller曲线包含,在其monodromy的一个因素,一组以前没有观察到。也就是说,它的Zapriki闭包等于群$SO^*(6)$的标准表示;直到有限指数,这与$SU(3,1)$的第二个外幂表示相同。这个例子是使用origamis(即正方形瓷砖表面)构建的。它可以推广为在群$SO^*(2n)$内对所有$n$给出单值性,但在一般情况下,单值性可能在群内进一步分裂。此外,我们借此机会计算的多重性表示的(0,1)部分的上同调的定期origamis,回答一个问题的Matheus-Yoccoz-Zmiaikou。

英文摘要:

We give an example of a Teichmüller curve which contains, in a factor of its monodromy, a group which was not observed before. Namely, it has Zariski closure equal to the group $SO^*(6)$ in its standard representation; up to finite index, this is the same as $SU(3,1)$ in its second exterior power representation. The example is constructed using origamis (i.e. square-tiled surfaces). It can be generalized to give monodromy inside the group $SO^*(2n)$ for all $n$, but in the general case the monodromy might split further inside the group. Also, we take the opportunity to compute the multiplicities of representations in the (0,1) part of the cohomology of regular origamis, answering a question of Matheus-Yoccoz-Zmiaikou.

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。

↑