中文

完备旗三维流形上的 't Hooft 丛与瞬子模空间

代数几何 2025-05-15 v2

摘要

本文中,我们研究旗扭转空间 F:=F(0,1,2)F:=F(0,1,2) 上瞬子丛的模空间。我们依据支撑全局截面的最小 twist 对其进行分层,并引入 FF 上(特殊)'t Hooft 丛的概念。特别地,我们证明对每个容许电荷 kk 均存在 μ\mu-稳定的 't Hooft 丛。我们完整描述了任意电荷 kk 下(特殊)'t Hooft 丛模空间的几何结构。在达成这些目标的过程中,我们描述了 FF 中某些有理曲线上支撑的重曲线的可能结构,以及实现为 FF 超平面截面的 del Pezzo 曲面族。最后,我们研究了 't Hooft 丛限制到二次曲线时的分裂行为。

关键词

引用

@article{arxiv.2307.02197,
  title  = {'t Hooft bundles on the complete flag threefold and moduli spaces of instantons},
  author = {Vincenzo Antonelli and Francesco Malaspina and Simone Marchesi and Joan Pons-Llopis},
  journal= {arXiv preprint arXiv:2307.02197},
  year   = {2025}
}

备注

45 pages. Several corrections, clarifications, and comments have been incorporated following the valuable feedback from the anonymous referees. In particular, Section 5 has been restructured to address an inaccuracy in the previous version. Final version to appear in Journal de Math\'ematiques Pures et Appliqu\'ees