Results 1 to 10 of about 5,030,646 (292)

Moving averages of ergodic processes

open access: yesMetrika, 1977
A necessary and sufficient condition for the almost everywhere convergence of the “moving” ergodic averages\((\Phi (n))^{ - 1} \mathop \Sigma \limits_{i = n - \Phi (n) + 1}^n x_E (T^i x)\) is given. The result is then generalized to ergodic flows, and finally constrasted with earlier results ofPfaffelhuber andJain.
Junco, A. del, Steele, J.M.
openaire   +2 more sources

On ergodic states, spontaneous symmetry breaking and the Bogoliubov quasi-averages

open access: yes, 2016
It is shown that Bogoliubov quasi-averages select the pure or ergodic states in the ergodic decomposition of the thermal (Gibbs) state. Our examples include quantum spin systems and many-body boson systems.
Wreszinski, Walter F.   +1 more
core   +1 more source

Strategies for sequential prediction of stationary time series [PDF]

open access: yes
We present simple procedures for the prediction of a real valued sequence. The algorithms are based on a combination of several simple predictors. We show that if the sequence is a realization of a bounded stationary and ergodic random process then the ...
Gábor Lugosi, László Györfi
core  

A Novel Approach to Approximating Generalized Pointing Errors Modeled by Beckmann Distribution in FSO Communication Systems

open access: yesIEEE Open Journal of the Communications Society
In this paper, we introduce a new and accurate approximation for the Beckmann distribution, a widely employed model for describing generalized pointing errors in the context of free-space optical (FSO) communication systems.
Emna Zedini   +3 more
doaj   +1 more source

Almost Everywhere Convergence of Entangled Ergodic Averages [PDF]

open access: yesIntegral Equations and Operator Theory, 2016
Comment: 16 pages, to appear in Integral Equations and Operator ...
openaire   +3 more sources

A short proof of a conjecture of Erdős proved by Moreira, Richter and Robertson

open access: yesDiscrete Analysis, 2019
A short proof of a conjecture of Erdős proved by Moreira, Richter and Robertson, Discrete Analysis 2019:19, 10 pp. The following question, sometimes known as the Erdős sumset conjecture, was asked by Erdős several decades ago.
Bernard Host
doaj   +1 more source

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