Results 41 to 50 of about 328 (171)

Creation of single-wing Lorenz-like attractors via a ten-ninths-degree term

open access: yesOpen Physics
In light of the subtle connection between the strange attractors and the degree of dynamical systems, in this study, we propose a new simple asymmetric Lorenz-like system and report the finding of single-wing Lorenz-like attractors, which can also be ...
Pan Jun   +3 more
doaj   +1 more source

Multiple front and pulse solutions in spatially periodic systems

open access: yesJournal of the London Mathematical Society, Volume 113, Issue 4, April 2026.
Abstract In this paper, we develop a comprehensive mathematical toolbox for the construction and spectral stability analysis of stationary multiple front and pulse solutions to general semilinear evolution problems on the real line with spatially periodic coefficients.
Lukas Bengel, Björn de Rijk
wiley   +1 more source

A complex network perspective on brain disease

open access: yesBiological Reviews, Volume 101, Issue 1, Page 364-399, February 2026.
ABSTRACT If brain anatomy and dynamics have a complex network structure as it has become standard to posit, it is reasonable to assume that such a structure should play a key role not only in brain function but also in brain dysfunction. However, exactly how network structure is implicated in brain damage and whether at least some pathologies can be ...
David Papo, Javier M. Buldú
wiley   +1 more source

Heteroclinic Orbits for Singular Hamiltonian Systems

open access: yesNelineinaya Dinamika
We are concerned with the existence of heteroclinic orbits for singular Hamiltonian systems of second order $\ddot{q}(t) + \nabla V(t, \,q)=0 $ where $V(t,\,q)$ is periodic in $t$ and has a singularity at a~point~${q=e}$. Suppose $V$ possesses a global maximum $\overline V$ on $\mathbb R \times \mathbb R ^N\setminus\{e\}$ and $V(t,\,x)= \overline{V ...
Antabli, Mohamed, Boughariou, Morched
openaire   +1 more source

Maxwell Fronts in the Discrete Nonlinear Schrödinger Equations With Competing Nonlinearities

open access: yesStudies in Applied Mathematics, Volume 156, Issue 2, February 2026.
ABSTRACT In discrete nonlinear systems, the study of nonlinear waves has revealed intriguing phenomena in various fields such as nonlinear optics, biophysics, and condensed matter physics. Discrete nonlinear Schrödinger (DNLS) equations are often employed to model these dynamics, particularly in the context of Bose–Einstein condensates and optical ...
Farrell Theodore Adriano, Hadi Susanto
wiley   +1 more source

Heteroclinic orbits in a model for Langmuir circulations

open access: yesPhysics Letters A, 1985
Abstract Numerical studies of a 5-mode model for Langmuir circulations show the existence if two fundamentally different types of heteroclinic orbits and period-doubling bifurcations. The first is common to other models of competing instabilities; the second is quite new and appears to be related to the quintic Duffing equation.
openaire   +1 more source

Heteroclinic Orbits in Systems with Slowly Varying Coefficients

open access: yesJournal of Differential Equations, 1993
The authors consider the system (*) \(\dot\xi=f(\xi,\eta,\varepsilon)\), \(\dot \eta=\varepsilon g(\xi,\eta,\varepsilon)\) with \(\xi\in\mathbb{R}^ n\), \(\eta\in\mathbb{R}^ m\), \(f\) and \(g\) smooth and bounded. They assume that for each \(\eta\), \(\dot\xi=f(\xi,\eta,0)\) has two hyperbolic equilibria \(u^ -(\eta)\) and \(u^ +(\eta)\) of the same ...
Battelli, F., Lazzari, C.
openaire   +2 more sources

A Survey of SIR‐Based Differential Epidemic Models for Control and Security Against Malware Propagation in Computer Networks

open access: yesSECURITY AND PRIVACY, Volume 9, Issue 1, January/February 2026.
ABSTRACT Unarguably, malware and their variants have metamorphosed into objects of attack and cyber warfare. These issues have directed research focus to modeling infrastructural settings and infection scenarios, analyzing propagation mechanisms, and conducting studies that highlight optimized remedial measures.
Chukwunonso Henry Nwokoye
wiley   +1 more source

FPGA Realization of a Novel Hyperchaos Augmented Image Encryption Algorithm

open access: yesIET Computers &Digital Techniques, Volume 2026, Issue 1, 2026.
With the rapid growth of multimedia communication, protecting image data has become increasingly critical. This article proposes a novel 3‐stage hyperchaos‐based augmented image encryption technique (3SHAIET) that utilizes a three‐stage process with chaotic systems of increasing dimensionality (e.g., six‐dimensional [6D], 8D, and 9D) to enhance ...
Wassim Alexan   +6 more
wiley   +1 more source

Global dynamics of a non-symmetric cubic Lienard system

open access: yes四川大学学报. 自然科学版, 2022
In this paper, we study global dynamics of a cubic non-symmetric Lienard system with global parameters, i.e., parameters are not required to be sufficiently small.
SUN Shu-Ting, CHEN Xing-Wu
doaj  

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