arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1702.06567math.DG
收藏

有限体积负曲流形的熵刚性

Entropy Rigidity of negatively curved manifolds of finite volume

M. Peigne, A. Sambusetti

摘要:

证明了有限体积中的熵刚性定理:若$X$是具有曲率$-b^2\leq K_X \leq -1$的负曲流形,则$Ent_{top}(X) = n-1$当且仅当$X$是双曲流形.特别地,如果$X$具有与双曲流形$X_0$相同的谱长,则它与$X_0$等距(我们也给出了这一事实的直接的、无熵的证明)。与紧流形上的经典定理进行了比较,指出了将它们推广到有限体积流形上的主要困难。

英文摘要:

We prove the following entropy-rigidity result in finite volume: if $X$ is a negatively curved manifold with curvature $-b^2\leq K_X \leq -1$, then $Ent_{top}(X) = n-1$ if and only if $X$ is hyperbolic. In particular, if $X$ has the same length spectrum of a hyperbolic manifold $X_0$, the it is isometric to $X_0$ (we also give a direct, entropy-free proof of this fact). We compare with the classical theorems holding in the compact case, pointing out the main difficulties to extend them to finite volume manifolds.

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。

↑