arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2103.01285math.AG
收藏

曲线上$\mathrm{SL}_n$-希格斯丛模空间的交截上同调

On the intersection cohomology of the moduli of $\mathrm{SL}_n$-Higgs bundles on a curve

Davesh Maulik, Junliang Shen

AI总结:

本文利用Ngô型支撑不等式研究曲线上任意次数SL_n-希格斯丛模空间的交截上同调,证明了奇异情形下的支撑定理及Hausel-Thaddeus拓扑镜像对称猜想的一个版本,并推广了Harder-Narasimhan定理。

摘要:

我们研究亏格为g的曲线上任意次数的$\mathrm{SL}_n$-希格斯丛模空间(可能具有奇异性)关于一个次数大于2g-2的有效除子的上同调结构。我们证明了$\mathrm{SL}_n$-希钦纤维化的一个支撑定理,将de Cataldo在非奇异情形下的支撑定理推广到奇异情形,并证明了交截上同调的Hausel-Thaddeus拓扑镜像对称猜想的一个版本。这意味着关于任意次数的半稳定向量丛的Harder-Narasimhan定理的一个推广。我们的主要工具是最近建立的Ngô型支撑不等式,该不等式适用于可能奇异的环绕空间和交截上同调复形。

英文摘要:

We explore the cohomological structure for the (possibly singular) moduli of $\mathrm{SL}_n$-Higgs bundles for arbitrary degree on a genus g curve with respect to an effective divisor of degree >2g-2. We prove a support theorem for the $\mathrm{SL}_n$-Hitchin fibration extending de Cataldo's support theorem in the nonsingular case, and a version of the Hausel-Thaddeus topological mirror symmetry conjecture for intersection cohomology. This implies a generalization of the Harder-Narasimhan theorem concerning semistable vector bundles for any degree. Our main tool is an Ngô-type support inequality established recently which works for possibly singular ambient spaces and intersection cohomology complexes.

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。

↑