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arXiv 2203.02528math.DG
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平衡中的曲率:四维流形的Weyl泛函和数量曲率

Curvature in the Balance: The Weyl Functional and Scalar Curvature of 4-Manifolds

Claude LeBrun

摘要:

Weyl泛函的下确界在许多紧致的4-流形上是令人惊讶的小,这些流形允许正标量曲率度量。本文还证明了系统地比较了某些几乎Kaehler四维流形的标量Weyl曲率和自对偶Weyl曲率。

英文摘要:

The infimum of the Weyl functional is shown to be surprisingly small on many compact 4-manifolds that admit positive-scalar-curvature metrics. Results are also proved that systematically compare the scalar and self-dual Weyl curvatures of certain almost-Kaehler 4-manifolds.

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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