论文标题

各向同性歧管的差异性的同时线性化

Simultaneous Linearization of Diffeomorphisms of Isotropic Manifolds

论文作者

DeWitt, Jonathan

论文摘要

假设$ m $是封闭的各向同性Riemannian歧管,而$ r_1,...,r_m $生成$ m $的等轴测组。令$ f_1,...,f_m $是这些异构体的平滑扰动。我们证明,$ f_i $在且仅当其相关统一的bernoulli随机步行中,同时是与等法的共轭。这将Dolgopyat和Krikorian的线性化结果从$ s^n $扩展到了真实,复杂和Quaternionic投射空间。此外,我们在早期工作中确定并纠正了监督。

Suppose that $M$ is a closed isotropic Riemannian manifold and that $R_1,...,R_m$ generate the isometry group of $M$. Let $f_1,...,f_m$ be smooth perturbations of these isometries. We show that the $f_i$ are simultaneously conjugate to isometries if and only if their associated uniform Bernoulli random walk has all Lyapunov exponents zero. This extends a linearization result of Dolgopyat and Krikorian from $S^n$ to real, complex, and quaternionic projective spaces. In addition, we identify and remedy an oversight in that earlier work.

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