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arXiv 0906.0927math.DGmath.AP
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有边流形上标量平坦度量的一个compactness定理

A compactness theorem for scalar-flat metrics on manifolds with boundary

Sergio Almaraz

摘要:

设(M,g)是带边界的紧致黎曼流形.本文研究了g的共形类中边界为常中曲率超曲面的标量平坦度量集。我们证明了这个集是紧的,为尺寸大于或等于7的一般条件下,无迹的第二基本形式的边界是非零的。

英文摘要:

Let (M,g) be a compact Riemannian manifold with boundary. This paper is concerned with the set of scalar-flat metrics which are in the conformal class of g and have the boundary as a constant mean curvature hypersurface. We prove that this set is compact for dimensions greater than or equal to 7 under the generic condition that the trace-free 2nd fundamental form of the boundary is nonzero everywhere.

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