arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1102.3347math.DGmath.AP
收藏

黎曼度量流形上的Sobolev度量

Sobolev metrics on the manifold of all Riemannian metrics

Martin Bauer, Philipp Harms, Peter W. Michor

摘要:

在紧致流形$M$上的所有黎曼度量的流形$\Met(M)$上,人们可以考虑自然的$L^2$ -度量,如\cite{Ebin70}首先描述的。在本文中,我们考虑这个度量的变种,一般是高阶的。我们导出了测地线方程,证明了它们在一定条件下是适定的,并导出了一个局部双纯测地线指数映射。我们给出了里奇流是梯度流的一个条件。

英文摘要:

On the manifold $\Met(M)$ of all Riemannian metrics on a compact manifold $M$ one can consider the natural $L^2$-metric as described first by \cite{Ebin70}. In this paper we consider variants of this metric which in general are of higher order. We derive the geodesic equations, we show that they are well-posed under some conditions and induce a locally diffeomorphic geodesic exponential mapping. We give a condition when Ricci flow is a gradient flow for one of these metrics.

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。

↑