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arXiv math/0008139math.DGmath.ATmath.GN
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正数量曲率流形与共形余论

Manifolds of Positive Scalar Curvature and Conformal Cobordism Theory

Kazuo Akutagawa, Boris Botvinnik

摘要:

本文研究具有正数量曲率度量的紧致流形。我们利用数学DG/0008138中的相对Yamabe不变量定义了这类流形范畴上的共形配边关系。证明了相应的共形配边群$\Pos_n^{\conf}(γ)$与S拓扑定义的配边群$\Pos_n(γ)$同构.斯托尔兹作为推论,我们证明了正的数量曲率度量的共形协调与标准的协调关系相吻合。我们的主要技术工具来自分析和共形几何。

英文摘要:

We study here compact manifolds with positive scalar curvature metrics. We use the relative Yamabe invariant from math.DG/0008138 to define the conformal cobordism relation on the category of such manifolds. We prove that corresponding conformal cobordism groups $\Pos_n^{\conf}(γ)$ are isomorphic to the cobordism groups $\Pos_n(γ)$ defined topologically by S. Stolz. As a corollary we show that the conformal concordance of positive scalar curvature metrics coincides with the standard concordance relation. Our main technical tools came from the analysis and conformal geometry.

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