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Dynamical systems on measure spaces, invariant measures, ergodic averages, mixing properties.

9 votes
2 answers
673 views

How does the mixing time of a geodesic flow on a surface vary with the genus?

I have been looking at the numerical behavior of a particular quantity (of no direct importance here, though if you must know the gory details start with figure 17 here) associated to the geodesic flo …
Steve Huntsman's user avatar
8 votes
1 answer
604 views

A regularity property of transition matrices for the cat map

I've noticed a rather strange phenomenon (not important for my particular research, but interesting) and wouldn't be surprised if someone more versed in symbolic dynamics (i.e., just about anyone who …
Steve Huntsman's user avatar
5 votes
2 answers
458 views

Do there exist Markov partitions with (nearly) uniform SRB measures?

Let $M$ be a compact, finite-dimensional Riemannian manifold, let $T: M \rightarrow M$ be an Anosov diffeomorphism, and let $\mu$ be a Sinai-Ruelle-Bowen (probability) measure. Write $\mathcal{R} = \{ …
Steve Huntsman's user avatar
5 votes
1 answer
398 views

Is the average first return time of a partitioned ergodic transformation just the number of ...

For some reason my thinking is very fuzzy today, so I apologize for the following rather silly question below... Let $T$ be an ergodic transformation of $(X,\Omega, \mathbb{P})$ and let $X$ be partit …
Steve Huntsman's user avatar
5 votes
4 answers
701 views

When is there a natural Riemannian metric whose measure preserves a self-diffeomorphism?

Let $M$ be a compact Riemannian manifold with metric $g$ and let $f \in Diff(M)$. Under what circumstances is there a natural metric $g_f$ s.t. the associated smooth measure $\nu_f$ is preserved by …
Steve Huntsman's user avatar
4 votes
1 answer
501 views

Question about an early result on the mixing of geodesic flows

Let $T_t$ be the geodesic flow on a surface $S$ of constant negative curvature, and let $M(f,t) := \langle \bar f \cdot (f \circ T_t) \rangle$, where $\langle f \rangle := \int_S f(x) d\mu(x)$ and whe …
Steve Huntsman's user avatar
4 votes
1 answer
267 views

What is known about first return times to Markov partitions for Anosov diffeomorphisms?

Consider an Anosov diffeomorphism $T: M \rightarrow M$ and a corresponding Markov partition $\mathcal{R}$ of $M$. For $x \in M$, let $\mathcal{R}(x)$ denote the element of $\mathcal{R}$ containing $x$ …
Steve Huntsman's user avatar
3 votes
1 answer
996 views

The Arnold cat map

How can I compute the SRB measure for the cat map? Also any pointers to references for obtaining Markov partitions and recurrence times would be lovely. Thanks
Steve Huntsman's user avatar