论文标题

彼得森 - 威廉·猜想的主要捆绑包

The Petersen--Wilhelm conjecture on principal bundles

论文作者

Cavenaghi, Leonardo F., Grama, Lino, Sperança, Llohann D.

论文摘要

本文研究了$ \ mathrm {s}^3,\ mathrm {so}(3)$ principal捆绑包的cheeger变形,以获取正面曲率累积指标的条件。我们尤其得出结论,彼得森(Petersen)的更强大版本 - 对主要捆绑包的Wilhelm纤维维度猜想。我们证明了任何$π:\ mathrm {so}(3),\ mathrm {s}^3 \ hookrightarrow \ cal p \ cal p \ rightarrow b $ thim bugry bum principal bunconal buncally bunctal thiked Curved base基地承认,如果,则仅当肥皂水尤其是$ \ dim b beg beg beg be b $ \ geq 4 $。该证明将``良好的三重''概念结合在一起,原因是Munteanu和Tapp \ cite {tappMunteAnu2},以及chaves-derdzisnki-rigas类型的条件与非负曲率。此外,对其他类别的淹没验证了猜想。

This paper studies Cheeger deformations on $\mathrm{S}^3, \mathrm{SO}(3)$ principal bundles to obtain conditions for positive sectional curvature submersion metrics. We conclude, in particular, a stronger version of the Petersen--Wilhelm fiber dimension conjecture to the class of principal bundles. We prove any $π: \mathrm{SO}(3), \mathrm{S}^3 \hookrightarrow \cal P \rightarrow B$ principal bundle over a positively curved base admits a metric of positive sectional curvature if, and only if, the submersion is fat, in particular, $\dim B \geq 4$. The proof combines the concept of ``good triples'' due to Munteanu and Tapp \cite{tappmunteanu2}, with a Chaves--Derdzisnki--Rigas type condition to nonnegative curvature. Additionally, the conjecture is verified for other classes of submersions.

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