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arXiv 2206.14865math.DG
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曲率为零条件下黎曼挠率空间的刚性结果

Rigidity results for Riemannian twistor spaces under vanishing curvature conditions

Giovanni Catino, Davide Dameno, Paolo Mastrolia

AI总结:

本文利用活动标架法研究四维黎曼流形挠率空间的刚性,证明$\mathbb{CP}^3$是唯一Bochner张量平行者,分类相关空间并证明共形平坦情形不存在,同时推广Atiyah–Hitchin–Singer自对偶结果。

摘要:

本文给出了关于四维黎曼流形及其挠率空间的新刚性结果。特别地,利用活动标架法,我们证明了$\mathbb{CP}^3$是唯一Bochner张量平行的挠率空间;此外,我们对Hermite Ricci平行及局部对称的挠率空间进行了分类,并证明了共形平坦挠率空间不存在。我们还推广了Atiyah、Hitchin和Singer关于黎曼四流形自对偶性的一个结果。

英文摘要:

In this paper we provide new rigidity results for four-dimensional Riemannian manifolds and their twistor spaces.In particular, using the moving frame method, we prove that $\mathbb{CP}^3$ is the only twistor space whose Bochner tensor is parallel; moreover, we classify Hermitian Ricci-parallel and locally symmetric twistor spaces and we show the nonexistence of conformally flat twistor spaces. We also generalize a result due to Atiyah, Hitchin and Singer concerning the self-duality of a Riemannian four-manifold.

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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