论文标题

立方四倍的K稳定性

K-stability of cubic fourfolds

论文作者

Liu, Yuchen

论文摘要

我们证明了立方四倍的K-Moduli空间与它们的GIT模量空间相同。更确切地说,立方四倍的K-(半/多)稳定性与相应的GIT稳定性一致,Laza详细研究了相应的GIT稳定性。特别是,这意味着所有光滑的立方四倍均承认Kähler-Einstein指标。关键成分是由于Liu-XU引起的局部体积估计值,以及Ambro-Kawamata对Fano Fourdolds的非呈现定理。

We prove that the K-moduli space of cubic fourfolds is identical to their GIT moduli space. More precisely, the K-(semi/poly)stability of cubic fourfolds coincide to the corresponding GIT stabilities, which was studied in detail by Laza. In particular, this implies that all smooth cubic fourfolds admit Kähler-Einstein metrics. Key ingredients are local volume estimates in dimension three due to Liu-Xu, and Ambro-Kawamata's non-vanishing theorem for Fano fourfolds.

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