Results 21 to 30 of about 2,741,092 (222)

Structure of Fourier exponents of almost periodic functions and periodicity of almost periodic functions [PDF]

open access: yes, 1996
summary:The paper deals with almost periodic functions which are limits of sequences of continuous periodic functions, and determines the structure of their Fourier exponents and their ranges.
Fischer, Alexandr
core   +1 more source

Some Remarks on Almost Periodic Sequences and Languages

open access: yesCoRR, 2022
Reconstructed source file of a paper originally published in 1995 in a volume currently without an online version (and with limited availability). Uploaded in order to ensure the online availability (and preservation) of the paper. This version faithfully reproduces the original, except for the addition of a note about the solution of Open Problem 3 ...
openaire   +2 more sources

Vector-valued pseudo almost periodic functions [PDF]

open access: yes, 1997
summary:Vector-valued pseudo almost periodic functions are defined and their properties are investigated. The vector-valued functions contain many known functions as special cases.
Zhang, Chuanyi
core   +1 more source

A Stochastic Model of Noises for Periodic Symbol Sequences

open access: yesСовременные информационные технологии и IT-образование, 2019
The construction of almost periodic sequences is needed for the analysis of the cycles’ detection methods, identification of symbolic sequences’ features and sensitivity analysis.
Galina N. Zhukova   +2 more
doaj   +1 more source

Forbidden Substrings, Kolmogorov Complexity and Almost Periodic Sequences [PDF]

open access: yes, 2006
Assume that for some $α<1$ and for all nutural $n$ a set $F_n$ of at most $2^{αn}$ "forbidden" binary strings of length $n$ is fixed. Then there exists an infinite binary sequence $ω$ that does not have (long) forbidden substrings. We prove this combinatorial statement by translating it into a statement about Kolmogorov complexity and compare this ...
Andrey Yu. Rumyantsev, M. A. Ushakov
openaire   +3 more sources

Feature-Extraction-Based Iterated Algorithms to Solve the Unrelated Parallel Machine Problem With Periodic Maintenance Activities

open access: yesIEEE Access, 2021
This paper considers an unrelated parallel machine problem with job release times and maintenance activities, in which machines have to periodically undergo maintenance since the status of the machines will be deteriorated by job-induced dirt.
Jihong Pang, Ya-Chih Tsai, Fuh-Der Chou
doaj   +1 more source

Almost Periodic Solutions on a Class Secondorder Differential Equations with Piecewise Constant Argument

open access: yesJournal of Harbin University of Science and Technology, 2019
Almost periodic solutions of differential equations are more general than periodic solutions, so almost periodic solutions will be studied on a class secondorder differential equations with piecewise constant argument.
YAO Hui-li   +2 more
doaj   +1 more source

The Method of Estimating the Period of a Symbolic Periodic Sequence with Noise, Based on the Sub-Words Positions in the Sequence

open access: yesСовременные информационные технологии и IT-образование, 2020
The method of estimating the period of an almost periodic sequence is proposed. The period of an almost periodic sequence is the length of the smallest periodic pattern that composes the corresponding completely periodic sequence by repetition.
Galina Zhukova   +3 more
doaj   +1 more source

Exploring the Individual Pulse Behavior of Pulsar J1701−3726 with Parkes

open access: yesThe Astrophysical Journal, 2023
We have carried out a detailed study of polarimetric individual pulse emission from the pulsar J1701−3726 (B1658−37), observed at 1369 MHz using the Parkes 64 m radio telescope.
H. Wang   +17 more
doaj   +1 more source

Almost Periodic Solutions of Abstract Impulsive Volterra Integro-Differential Inclusions

open access: yesFractal and Fractional, 2023
In this paper, we introduce and systematically analyze the classes of (pre-)(B,ρ,(tk))-piecewise continuous almost periodic functions and (pre-)(B,ρ,(tk))-piecewise continuous uniformly recurrent functions with values in complex Banach spaces.
Wei-Shih Du   +2 more
doaj   +1 more source

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