English
Related papers

Related papers: Independence and Alpern Multitowers

200 papers

Given a measure-preserving transformation $T$ of a probability space $(X, \mathcal B, \mu)$ and a finite measurable partition $P$ of $X$, we show how to construct an Alpern tower of any height whose base is independent of the partition $P$.…

Dynamical Systems · Mathematics 2018-06-08 J. T. Campbell , J. T. Collins , R. King , S. Kalikow , R. McCutcheon

We find a countable partition $P$ on\textbf{} a Lebesgue space, labeled $\{1,2,3...$\}, for any non-periodic measure preserving transformation $T$ such that $P$ generates $T$ and for the $T,P$ process, if you see an $n$ on time -1 then you…

Dynamical Systems · Mathematics 2011-08-30 Steven Kalikow

It is studied a connection between the separability and the countable chain condition of spaces with the $L$-property (a topological space $X$ has the $L$-property if for every topological space $Y$, separately continuous function…

General Topology · Mathematics 2015-12-29 V. V. Mykhaylyuk

We prove that if a Borel probability measure (\mu) on (\T) is invariant under the action of a "large" multiplicative semigroup (lower logarithmic density is positive) and the action of the whole semigroup is ergodic then (\mu) is either…

Dynamical Systems · Mathematics 2008-09-04 Manfred Einsiedler , Alexander Fish

The class of generic structures among those consisting of the measure algebra of a probability space equipped with an automorphism is axiomatizable by positive sentences interpreted using an approximate semantics. The separable generic…

Logic · Mathematics 2007-05-23 Alexander Berenstein , C. Ward Henson

Suppose that G is a finite group and A is a subset of G such that 1_A has algebra norm at most M. Then 1_A is a plus/minus sum of at most L cosets of subgroups of G, and L can be taken to be triply tower in O(M). This is a quantitative…

Classical Analysis and ODEs · Mathematics 2012-12-04 Tom Sanders

Suppose $a_n$ is a real, nonnegative sequence that does not increase exponentially. For any $p<1$ we contruct a Lebesgue measurable set $E \subseteq \mathbb{R}$ which has measure at least $p$ in any unit interval and which contains no…

Classical Analysis and ODEs · Mathematics 2024-12-18 Mihail N. Kolountzakis , Effie Papageorgiou

We study the problem of differentiation of integrals for certain bases in the infinite-dimensional torus $\mathbb{T}^\omega$. In particular, for every $p_0 \in [1,\infty)$, we construct a basis $\mathcal{B}$ which differentiates…

Classical Analysis and ODEs · Mathematics 2025-05-09 Marco Fraccaroli , Dariusz Kosz , Luz Roncal

We show that for a large class of maps on manifolds of arbitrary finite dimension, the existence of a Gibbs-Markov-Young structure (with Lebesgue as the reference measure) is a necessary as well as sufficient condition for the existence of…

Dynamical Systems · Mathematics 2012-11-07 Jose F. Alves , Carla L. Dias , Stefano Luzzatto

In this paper we present a number of results concerning Alpert wavelet bases for $L^2(\mu)$, with $\mu$ a locally finite positive Borel measure on $\mathbb{R}^n$. We show that the properties of such a basis depend on linear dependences in…

Classical Analysis and ODEs · Mathematics 2025-03-28 Fletcher Gates , Scott Rodney

The Furstenberg-Zimmer structure theorem for $\mathbb{Z}^d$ actions says that every measure-preserving system can be decomposed into a tower of primitive extensions. Furstenberg and Katznelson used this analysis to prove the…

Dynamical Systems · Mathematics 2009-10-01 Henry Towsner

Building on recent results regarding symmetric probabilistic constructions of countable structures, we provide a method for constructing probability measures, concentrated on certain classes of countably infinite structures, that are…

Logic · Mathematics 2015-11-24 Nathanael Ackerman , Cameron Freer , Jaroslav Nesetril , Rehana Patel

A topological space $X$ is defined to have a neighborhood $P$-base at any $x\in X$ from some poset $P$ if there exists a neighborhood base $(U_p[x])_{p\in P}$ at $x$ such that $U_p[x]\subseteq U_{p'}[x]$ for all $p\geq p'$ in $P$. We prove…

General Topology · Mathematics 2021-05-21 Ziqn Feng

In this paper we investigate the foundations for analysis in infinitely-many (independent) variables. We give a topological approach to the construction of the regular $\s$-finite Kirtadze-Pantsulaia measure on $\R^\iy$ (the usual…

Functional Analysis · Mathematics 2012-06-27 Tepper L. Gill , Gogi R. Pantsulaia , Woodford W. Zachary

We provide a proof of the Alpern multi-tower theorem for Z^d actions. We reformulate the theorem as a problem of measurably tiling orbits of a Z^d action by a collection of rectangles whose corresponding sides have no non-trivial common…

Dynamical Systems · Mathematics 2008-01-21 Ayse A. Sahin

We provide a given algebraic structure with the structure of an infinitesimal algebraic skeleton. The necessary conditions for integrability of the absolute parallelism of a tower with such a skeleton are dispersive nonlinear models and…

Mathematical Physics · Physics 2015-05-27 Marcella Palese , Ekkehart Winterroth

Let $\nu$ be a probability measure that is ergodic under the endomorphism $(\times p, \times p)$ of the torus $\mathbb{T}^2$, such that $\dim \pi \mu < \dim \mu$ for some non-principal projection $\pi$. We show that, if both $m\neq n$ are…

Dynamical Systems · Mathematics 2020-01-22 Amir Algom

Let $(X,\mathcal{A}, \mu)$ be a probability measure space and let $T_i,$ $1\leq i\leq H,$ be invertible bi measurable measure preserving transformations on this measure space. We give a sufficient condition for the product of $H$ bounded…

Dynamical Systems · Mathematics 2018-05-22 Idris Assani

We prove that, under a mild summability condition on the growth of the derivative on critical orbits any piecewise monotone interval map possibly containing discontinuities and singularities with infinite derivative (cusp map) admits an…

Dynamical Systems · Mathematics 2010-08-26 Vitor Araujo , Stefano Luzzatto , Marcelo Viana

We prove a new general multiplicity estimate applicable to sets of functions without any assumption on algebraic independence. The multiplicity estimates are commonly used in determining measures of algebraic independence of values of…

Number Theory · Mathematics 2018-05-16 Evgeniy Zorin
‹ Prev 1 2 3 10 Next ›