Results 11 to 20 of about 5,030,646 (292)

From dual-unitary to quantum Bernoulli circuits: Role of the entangling power in constructing a quantum ergodic hierarchy [PDF]

open access: yesPhysical Review Research, 2021
Deterministic classical dynamical systems have an ergodic hierarchy, from ergodic through mixing, to Bernoulli systems that are “as random as a coin toss.” Dual-unitary circuits have been recently introduced as solvable models of many-body nonintegrable ...
S. Aravinda   +2 more
doaj   +2 more sources

Slow Convergences of Ergodic Averages

open access: yesMathematical Notes, 2023
Birkhoff's theorem states that for an ergodic automorphism, the time averages converge to the space average. Given sequence $ψ(n)\to+0$, U. Krengel proved that for any ergodic automorphism there is an indicator such that the corresponding time averages converged a.e. with a rate slower than $ψ$. We prove again similar statements answering a question of
Валерий Валентинович Рыжиков   +1 more
semanticscholar   +4 more sources

Approximating the maximum ergodic average via periodic orbits [PDF]

open access: yesErgodic Theory and Dynamical Systems, 2008
Let sigma: Sigma(A) -> Sigma(A) be a subshift of finite type, let M-sigma be the set of all sigma-invariant Borel probability measures on Sigma(A), and let f : Sigma(A) -> R be a Holder continuous observable.
Contreras   +3 more
core   +2 more sources

Impulse control maximising average cost per unit time: a non-uniformly ergodic case [PDF]

open access: yesSIAM Journal of Control and Optimization, 2016
This paper studies maximisation of an average-cost-per-unit-time ergodic functional over impulse strategies controlling a Feller-Markov process. The uncontrolled process is assumed to be ergodic but, unlike the extant literature, the convergence to ...
Palczewski, Jan, Stettner, Lukasz
core   +4 more sources

Generic points in systems of specification and Banach valued Birkhoff ergodic average [PDF]

open access: yes, 2008
We prove that systems satisfying the specification property are saturated in the sense that the topological entropy of the set of generic points of any invariant measure is equal to the measure-theoretic entropy of the measure.
Fan, Ai-Hua   +2 more
core   +2 more sources

Convergence of diagonal ergodic averages [PDF]

open access: greenErgodic Theory and Dynamical Systems, 2009
AbstractTao has recently proved that ifT1,…,Tlare commuting, invertible, measure-preserving transformations on a dynamical system, then for anyL∞functionsf1,…,fl, the average (1/N)∑n=0N−1∏i≤lfi∘Tinconverges in theL2norm. Tao’s proof is unusual in that it translates the problem into a more complicated statement about the combinatorics of finite spaces ...
HENRY TOWSNER
openalex   +4 more sources

Multifractal analysis of multiple ergodic averages [PDF]

open access: greenComptes Rendus. Mathématique, 2011
In this Note we present a complete solution to the problem of multifractal analysis of multiple ergodic averages in the case of symbolic dynamics for functions of two variables depending on the first coordinate.
Aihua Fan, Jörg Schmeling, Meng Wu
openalex   +5 more sources

Pointwise convergence of some multiple ergodic averages [PDF]

open access: green, 2016
We show that for every ergodic system $(X,\mu,T_1,\ldots,T_d)$ with commuting transformations, the average \[\frac{1}{N^{d+1}} \sum_{0\leq n_1,\ldots,n_d \leq N-1} \sum_{0\leq n\leq N-1} f_1(T_1^n \prod_{j=1}^d T_j^{n_j}x)f_2(T_2^n \prod_{j=1}^d T_j^{n_j}
Sebastián Donoso, Wenbo Sun
openalex   +3 more sources

Learning Ergodic Averages in Chaotic Systems [PDF]

open access: yesInternational Conference on Conceptual Structures, 2020
We propose a physics-informed machine learning method to predict the time average of a chaotic attractor. The method is based on the hybrid echo state network (hESN).
Francisco Huhn, L. Magri
semanticscholar   +4 more sources

Convergence of polynomial ergodic averages [PDF]

open access: yesIsrael Journal of Mathematics, 2005
The main result of the paper is the proof of \(L^2\)-convergence of a product of measurable functions evaluated along polynomial times. Let \((X,{\mathcal B}, \mu,T)\) be an invertible dynamical system, let \(\{p_i(n)\}_{i=1}^\ell\) be integer polynomials, and let at least one of the following conditions hold: (i) the system \((X,{\mathcal B}, \mu,T)\)
Host, Bernard, Kra, Bryna
openaire   +4 more sources

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