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arXiv 2101.07572math.DG
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常负数量Weyl曲率的一阶导数

Metrics of constant negative scalar-Weyl curvature

Giovanni Catino

摘要:

推广Aubin关于具有常负数量曲率的度量的构造,证明了每个$n$维闭流形都存在一个具有常负数量Weyl曲率的黎曼度量,即$R+t|W|, t\in\mathbb{R}$ .特别地,对于具有$\varepsilon$ -捏外尔曲率和负数量曲率的度量没有拓扑障碍。

英文摘要:

Extending Aubin's construction of metrics with constant negative scalar curvature, we prove that every $n$-dimensional closed manifold admits a Riemannian metric with constant negative scalar-Weyl curvature, that is $R+t|W|, t\in\mathbb{R}$. In particular, there are no topological obstructions for metrics with $\varepsilon$-pinched Weyl curvature and negative scalar curvature.

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