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arXiv 1503.04172math.DGmath.AP
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渐近欧氏空间中的Yamabe分类和规定的数量曲率

Yamabe Classification and Prescribed Scalar Curvature in the Asymptotically Euclidean Setting

David Maxwell, James Dilts

摘要:

证明了渐近欧氏流形与具有非正数量曲率的流形共形相关的一个充要条件:期望的数量曲率的零点集必须具有正Yamabe不变量,如文中所定义的.我们还展示了如何的Yamabe不变的一个可测集的符号可以计算出某些广义的“加权”特征值的共形拉普拉斯算子的符号。利用给定的数量曲率结果,给出了渐近欧氏流形Yamabe类的一个刻划.我们还证明了渐近欧氏流形的Yamabe类与其共形紧化的Yamabe类是相同的。

英文摘要:

We prove a necessary and sufficient condition for an asymptotically Euclidean manifold to be conformally related to one with specified nonpositive scalar curvature: the zero set of the desired scalar curvature must have a positive Yamabe invariant, as defined in the article. We show additionally how the sign of the Yamabe invariant of a measurable set can be computed from the sign of certain generalized "weighted" eigenvalues of the conformal Laplacian. Using the prescribed scalar curvature result we give a characterization of the Yamabe classes of asymptotically Euclidean manifolds. We also show that the Yamabe class of an asymptotically Euclidean manifold is the same as the Yamabe class of its conformal compactification.

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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