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Results 1 - 3 of 3 |
1. CMB Online first
| Addendum to ``Limit Sets of Typical Homeomorphisms'' Given an integer $n \geq 3$,
a metrizable compact topological $n$-manifold $X$ with boundary,
and a finite positive Borel measure $\mu$ on $X$,
we prove that for the typical homeomorphism $f : X \to X$,
it is true that for $\mu$-almost every point $x$ in $X$ the restriction of
$f$ (respectively of $f^{-1}$) to the omega limit set $\omega(f,x)$
(respectively to the alpha limit set $\alpha(f,x)$) is topologically
conjugate to the universal odometer.
Keywords:topological manifolds, homeomorphisms, measures, Baire category, limit sets Categories:37B20, 54H20, 28C15, 54C35, 54E52 |
2. CMB 2011 (vol 55 pp. 225)
| Limit Sets of Typical Homeomorphisms Given an integer $n \geq 3$, a metrizable compact
topological $n$-manifold $X$ with boundary, and a finite positive Borel
measure $\mu$ on $X$, we prove that for the typical homeomorphism
$f \colon X \to X$, it is true that for $\mu$-almost every point $x$ in $X$
the limit set $\omega(f,x)$ is a Cantor set of Hausdorff dimension zero,
each point of $\omega(f,x)$ has a dense orbit in $\omega(f,x)$, $f$ is
non-sensitive at each point of $\omega(f,x)$, and the function
$a \to \omega(f,a)$ is continuous at $x$.
Keywords:topological manifolds, homeomorphisms, measures, Baire category, limit sets Categories:37B20, 54H20, 28C15, 54C35, 54E52 |
3. CMB 1999 (vol 42 pp. 291)
| Spaces of Quasi-Measures We give a direct proof that the space of Baire quasi-measures on a
completely regular space (or the space of Borel quasi-measures on a
normal space) is compact Hausdorff. We show that it is possible for
the space of Borel quasi-measures on a non-normal space to be
non-compact. This result also provides an example of a Baire
quasi-measure that has no extension to a Borel quasi-measure. Finally,
we give a concise proof of the Wheeler-Shakmatov theorem, which states
that if $X$ is normal and $\dim(X) \le 1$, then every
quasi-measure on $X$ extends to a measure.
Category:28C15 |

