Results 11 to 20 of about 46,438 (258)

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

Rotation sets and almost periodic sequences [PDF]

open access: yesMathematische Zeitschrift, 2016
We study the rotational behaviour on minimal sets of torus homeomorphisms and show that the associated rotation sets can be any type of line segments as well as non-convex and even plane-separating continua. This shows that restrictions holding for rotation sets on the whole torus are not valid on minimal sets.
Jäger, T., Passeggi, A., Štimac, Sonja
openaire   +6 more sources

Pseudo Almost Periodic Sequence Solutions of Discrete Time Cellular Neural Networks

open access: yesNonlinear Analysis, 2009
In this paper we discuss the existence and uniqueness of a k-pseudo almost periodic sequence solutions of a discrete time neural network. We give several sufficient conditions for the exponential and global attractivity of the solution.
S. Abbas
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

Regenerative Shaper of Ultrashort Light Pulses

open access: yesPhotonics, 2023
In this article, we propose and demonstrate an ultrashort light pulse regenerative shaper based on a closed-loop double-stage Mamyshev regenerator with an electrically controllable acousto-optic switch.
Kęstutis Regelskis   +2 more
doaj   +1 more source

Fields of almost periodic sequences

open access: yesJournal of Combinatorial Theory, Series A, 1977
AbstractLet F((x)) be the field of formal power series over the field with two elements F. We classify all quadratic elements in F((x)) which are almost periodic, the Morse-Hedlund sequence being a special case. We also give some results for higher-degree almost periodic elements.
Leonard E. Baum   +3 more
openaire   +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

Triskeles and Symmetries of Mean Global Sea-Level Pressure

open access: yesAtmosphere, 2022
The evolution of mean sea-level atmospheric pressure since 1850 is analyzed using iterative singular spectrum analysis. Maps of the main components (the trends) reveal striking symmetries of order 3 and 4.
Fernando Lopes   +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   +2 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

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