arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2009.10909math.AGhep-th
收藏

Calabi-Yau 4-折叠上反常协调系统的计数

Counting perverse coherent systems on Calabi-Yau 4-folds

Yalong Cao, Yukinobu Toda

摘要:

Nagao-Nakajima在Calabi-Yau 3-folds的小分辨率上引入了稳定反常协调系统的计数不变量,并在已分辨的锥上确定了它们。他们的不变量恢复DT/PT不变量和Szendröi的非交换不变量在某些腔室的稳定性条件。在本文中,我们研究了一个类似的工作,他们的Calabi-Yau 4-folds。我们定义了计数不变量的稳定反常协调系统使用初级插入和计算它们在所有室的稳定性条件。我们还研究了计数不变量的局部解决conifold $\mathcal{O}_{\mathbb{P}^1}(-1,-1,0)$定义使用环面本地化和重言式插入。我们猜想他们的一个过壁公式,降维后恢复Nagao-Nakajima的过壁公式解决conifold。

英文摘要:

Nagao-Nakajima introduced counting invariants of stable perverse coherent systems on small resolutions of Calabi-Yau 3-folds and determined them on the resolved conifold. Their invariants recover DT/PT invariants and Szendröi's non-commutative invariants in some chambers of stability conditions. In this paper, we study an analogue of their work on Calabi-Yau 4-folds. We define counting invariants for stable perverse coherent systems using primary insertions and compute them in all chambers of stability conditions. We also study counting invariants of local resolved conifold $\mathcal{O}_{\mathbb{P}^1}(-1,-1,0)$ defined using torus localization and tautological insertions. We conjecture a wall-crossing formula for them, which upon dimensional reduction recovers Nagao-Nakajima's wall-crossing formula on resolved conifold.

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。

↑