Results 11 to 20 of about 21,957 (303)

Chaotic mixing in a torus map [PDF]

open access: yesChaos: An Interdisciplinary Journal of Nonlinear Science, 2003
The advection and diffusion of a passive scalar is investigated for a map of the 2-torus. The map is chaotic, and the limit of almost-uniform stretching is considered. This allows an analytic understanding of the transition from a phase of constant scalar variance (for short times) to exponential decay (for long times). This transition is embodied in a
Thiffeault, JL, Childress, S
openaire   +5 more sources

Symbolic partition in chaotic maps [PDF]

open access: yesChaos: An Interdisciplinary Journal of Nonlinear Science, 2021
In this work, we only use data on the unstable manifold to locate the partition boundaries by checking folding points at different levels, which practically coincide with homoclinic tangencies. The method is then applied to the classic two-dimensional Hénon map and a well-known three-dimensional map.
Misha Chai, Yueheng Lan
openaire   +3 more sources

Multidimensional Discrete Chaotic Maps

open access: yesFrontiers in Physics, 2022
In this paper, the general concept of multidimensional discrete maps is presented. Moreover, new and fundamental results show the invariance of the bifurcation points from periodic to chaotic behavior.
Maide Bucolo   +6 more
doaj   +1 more source

Technique for Enhancing the Chaotic Characteristics of Chaotic Maps Using Delayed Coupling and Its Application in Image Encryption

open access: yesMathematics, 2023
Chaotic systems are widely used in many scientific fields for their dynamic characteristics. This study proposes a new delayed coupling method, which not only disturbs the control coefficient in chaotic maps but also affects their function structure ...
Shuiyuan Huang   +3 more
doaj   +1 more source

Image Encryption Using a New Hybrid Chaotic Map and Spiral Transformation

open access: yesEntropy, 2023
Image encryption based on chaotic maps is an important method for ensuring the secure communication of digital multimedia on the Internet. To improve the encryption performance and security of image encryption systems, a new image encryption algorithm is
Mingfang Jiang, Hengfu Yang
doaj   +1 more source

Comment on “Image encryption with chaotically coupled chaotic maps” [PDF]

open access: yesPhysica D: Nonlinear Phenomena, 2010
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Arroyo, D   +4 more
openaire   +4 more sources

BER Performance Improvement of Dual Chaotic Maps Based on STBC Communication System

open access: yesAl-Khawarizmi Engineering Journal, 2022
Sensitive information of any multimedia must be encrypted before transmission. The dual chaotic algorithm is a good option to encrypt sensitive information by using different parameters and different initial conditions for two chaotic maps.
Lwaa Faisal Abdulameer   +2 more
doaj   +1 more source

Commentary: Multidimensional discrete chaotic maps

open access: yesFrontiers in Physics, 2022
A commentary on Commentary: Multidimensional discrete chaotic maps by Bucolo M., Buscarino A., Fortuna L. and Gagliano S. (2022). Front. Phys. 10:862376. doi: 10.
Rasa Smidtaite, Minvydas Ragulskis
doaj   +2 more sources

Chaotic Polynomial Maps [PDF]

open access: yesInternational Journal of Bifurcation and Chaos, 2016
This paper introduces a class of polynomial maps in Euclidean spaces, investigates the conditions under which there exist Smale horseshoes and uniformly hyperbolic invariant sets, studies the chaotic dynamical behavior and strange attractors, and shows that some maps are chaotic in the sense of Li–Yorke or Devaney.
openaire   +3 more sources

Using Sequence-to-Sequence Models for Carrier Frequency Offset Estimation of Short Messages and Chaotic Maps [PDF]

open access: yes, 2022
Deep Learning methods have produced good carrier frequency offset estimations for short message sequences in comparison with methods based on the Fast Fourier Transform. However, these performance gains were observed for short ranges of frequency offsets,
Deo, Ravinesh C.   +4 more
core   +1 more source

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