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

1 vote

Positivity of the top Lyapunov exponent

I think that the canonical references (in the $SL(d, \mathbb{Z})$ case) is Goldsheid-Margulis and Goldsheid-Guivarc'h. For the positivity results to hold you need a moment condition (which is automati …
Igor Rivin's user avatar
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0 votes

Uniquely ergodicity and polynomial ergodic average

This seems to be discussed at great length in the Host-Kra paper. They have many references.
Igor Rivin's user avatar
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7 votes

What time does it take for irrational rotations to hit an interval?

This is a very nice question! A lot of results (and references) are given in Zaq Coelho's "The loss of tightness of time distributions for homeomorphisms of the circle".
Igor Rivin's user avatar
  • 96.4k
3 votes

Shannon-McMillan-Breiman theorem

http://www.yaroslavvb.com/papers/algoet-sandwich.pdf is pretty nice.
Igor Rivin's user avatar
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2 votes

Relationship between Multiplicative Ergodic Theorems

It seems to me that the OP is asking specifically what the metric on the symmetric space is, and why it is non-positively curved. These facts are discussed in Bhatia's paper (2003), where he refers to …
Igor Rivin's user avatar
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11 votes
Accepted

An algorithm for Poincare recurrence time

You want to find an $s$ such that $s, \sqrt{2} s, \sqrt{3} s, \sqrt{5} s$ are all close to integer. Your $t$ is then given by $2\pi s.$ The first question is a problem in simultaneous Diophantine appr …
Igor Rivin's user avatar
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1 vote

Automorphism group of compact abelian group

See Lian B. Smythe's paper on arXiv.org (2011).
Igor Rivin's user avatar
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11 votes
Accepted

distribution of $\{na\}$ when $a$ is irrational number

The distribution is known to be uniform (a result due to Weyl, I believe). An excellent reference for this (and much else) is Dym and McKean's book on harmonic analysis.
Igor Rivin's user avatar
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