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arXiv 2201.09962math.AG
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秩2次数0希格斯丛(及更多情形)的BPS上同调

BPS cohomology for rank 2 degree 0 Higgs bundles (and more)

Sebastian Schlegel Mejia

AI总结:

本研究给出秩2次数0半稳定希格斯丛模叠的E-级数与粗模空间相交E-多项式的比较公式,该公式适用于多种2-Calabi-Yau情形,为Davison的BPS上同调猜想提供证据,并用于上同调χ-无关性检验。

摘要:

我们给出一个公式,将亏格$g \geq 2$的秩2次数0半稳定希格斯丛的模叠的E-级数与其粗模空间的相交E-多项式进行比较。类似公式在多种2-Calabi-Yau(卡拉比-丘)情形下成立,例如K3曲面上的层,或者$g$-圈箭图的预投射代数。作为推论,我们为Davison关于希格斯丛BPS上同调的一个猜想提供了证据,该猜想对叠的非阿贝尔Hodge理论具有重要意义。我们将该公式应用于希格斯丛和K3曲面的BPS上同调的上同调$\chi$-无关性检验。

英文摘要:

We give a formula comparing the E-series of the moduli stacks of rank 2 degree 0 semistable Higgs bundles in genus $g \geq 2$ to intersection E-polynomials of its coarse moduli space. A parellel formula holds in various 2-Calabi-Yau settings, for example for sheaves on K3 surfaces, or preprojective algebras of $g$-loop quivers. As a consequence we provide evidence for a conjecture of Davison on the BPS cohomology of Higgs bundles, which has implications for non-abelian Hodge theory for stacks. We apply the formula to cohomological $χ$-independence tests for BPS cohomology of Higgs bundles and K3 surfaces.

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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