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arXiv 1601.04796math.DG
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具有正Yamabe常数的四个流形

Four manifolds with postive Yamabe constant

Hai-Ping Fu

摘要:

由于Gursky \cite{G3},我们改进了定理A。作为应用,我们给出了Yamabe常数为正的四维流形的刚性定理。特别是,这些刚性定理是尖锐的,因为我们的条件具有尖锐的附加性质。这样,我们就可以准确地描述平等的情况。本文证明了四种流形的共形不变量分类定理(定理1.3和1.6),推广了Chang-Gursky-Yang \cite{CGY}的共形不变球面定理.

英文摘要:

We refine Theorem A due to Gursky \cite{G3}. As applications, we give some rigidity theorems on four-manifolds with postive Yamabe constant. In particular, these rigidity theorems are sharp for our conditions have the additional properties of being sharp. By this we mean that we can precisely characterize the case of equality. We prove some classification theorems of four manifolds according to some conformal invariants (see Theorems 1.3 and 1.6), which generalize the conformally invariant sphere theorem of Chang-Gursky-Yang \cite{CGY}.

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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