Results 211 to 220 of about 3,398,742 (244)

On almost periodicity of morphic sequences

Doklady Mathematics, 2016
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WEAKLY ALMOST PERIODICITY AND DISTRIBUTIONAL CHAOS IN A SEQUENCE

International Journal of Modern Physics B, 2007
Let (∑, ρ) be a one-sided symbolic space (with two symbols) and σ be the shift on ∑. Denote the set of almost periodic points by A(·) and the set of weakly almost periodic points by W(·). In this paper, we prove that there exists an uncountable set J such that σ|J is distributively chaotic in a sequence, and J⊂W(σ)-A(σ).
LIDONG WANG, GUIFENG HUANG, NA WANG
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On construction of almost periodic sequences and applications to some discrete population models

Journal of Difference Equations and Applications, 2021
In this work, we develop a novel approximation strategy for building almost periodic sequences in the theory of almost periodic functions.
Taghiyev, Mustafa H., Hamidoğlu, Ali
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On AR(1) models with periodic and almost periodic coefficients [PDF]

Stochastic Processes and Their Applications, 2002
This paper is concerned with the existence of bounded solutions to the system of equations Xn=anXn−1+ξn, n∈Z, where ξn are uncorrelated constant variance zero mean random variables.
Hurd, H., Makagon, A., Miamee, A.G.
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Almost Periodic Functions and Sequences

2018
In this chapter we review basic properties of almost periodic functions as well as their discrete counterparts needed in the sequel.
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An algorithm for periodicity and almost periodicity of uniform substitution sequences and its implications on aperiodic spin models

Computer Physics Communications, 2019
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Suani T. R. Pinho, V. A. G. O. de Meneses, M. S. P. Muniz, Thierry Petit Lobão   +3 more
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Almost Six-Phase Sequences with Perfect Periodic Autocorrelation Function

2014
A new family of almost six-phase sequences with perfect periodic autocorrelation function is obtained. The distinctive features of these sequences are: fairly frequent grid of periods, quasi-perfect periodic cross-correlation function, and nearly unit peak-factor.
Vladimir E. Gantmakher, Mikhail V. Zaleshin   +1 more
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Uniform Exponential Stability of Discrete Semigroup and Space of Asymptotically Almost Periodic Sequences

Zeitschrift für Analysis und ihre Anwendungen, 2015
We prove that the discrete semigroup \mathbb{T}= \{\mathcal{T}(n): n \in \mathbb{Z_+}\} is uniformly exponentially stable if and only if for each z(n)\in \mathbb{AAP}_0(\mathbb{Z}_+,\mathcal{X})
Ahmad, Nisar, Khalid, Habiba, Zada, Akbar   +2 more
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Higher order crossings spectral analysis of an almost periodic random sequence in noise

IEEE Transactions on Information Theory, 1989
Summary: Under certain conditions the expected numbers of zero-crossings observed in both a finite section of a process with a mixed spectrum and in finite sections of its filtered versions determine the frequencies in the discrete spectrum regardless of the magnitude of the ``noise'' component.
Shuyuan He, Benjamin Kedem
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Global Attractivity of Almost Periodic Sequence Solutions of Delayed Discrete-Time Neural Networks

Arabian Journal for Science and Engineering, 2011
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