Results 1 to 10 of about 11,032 (269)

Self-Excited and Hidden Chaotic Attractors in Matouk’s Hyperchaotic Systems

open access: yesDiscrete Dynamics in Nature and Society, 2022
Self-excited and hidden chaotic attractors are interesting complex dynamical phenomena. Here, Matouk’s hyperchaotic systems are shown to have self-excited and hidden chaotic attractors, respectively.
A. Othman Almatroud   +4 more
doaj   +1 more source

Homogenization of Attractors to Ginzburg-Landau Equations in Media with Locally Periodic Obstacles: Sub- and Supercritical Cases

open access: yesҚарағанды университетінің хабаршысы. Математика сериясы
The Ginzburg-Landau equation with rapidly oscillating terms in the equation and boundary conditions in a perforated domain was considered. Proof was given that the trajectory attractors of this equation converge weakly to the trajectory attractors of ...
K.A. Бекмаганбетов   +3 more
doaj   +1 more source

Modeling the Epigenetic Attractors Landscape: Towards a Post-Genomic Mechanistic Understanding of Development

open access: yesFrontiers in Genetics, 2015
Robust temporal and spatial patterns of cell types emerge in the course of normal development in multicellular organisms. The onset of degenerative diseases may result from altered cell fate decisions that give rise to pathological phenotypes.
Jose eDavila-Velderrain   +4 more
doaj   +1 more source

Attractors in black

open access: yesFortschritte der Physik, 2008
AbstractWe review recent results in the study of attractor horizon geometries (with non‐vanishing Bekenstein‐Hawking entropy) of dyonic extremal d = 4 black holes in supergravity. We focus on 𝒩 = 2, d = 4 ungauged supergravity coupled to a number nVof Abelian vector multiplets, outlining the fundamentals of the special Kähler geometry of the vector ...
Belluci, Stefano   +2 more
openaire   +3 more sources

"Large" strange attractors in the unfolding of a heteroclinic attractor

open access: yesDiscrete & Continuous Dynamical Systems, 2022
<p style='text-indent:20px;'>We present a mechanism for the emergence of strange attractors in a one-parameter family of differential equations defined on a 3-dimensional sphere. When the parameter is zero, its flow exhibits an attracting heteroclinic network (Bykov network) made by two 1-dimensional connections and one 2-dimensional separatrix ...
openaire   +3 more sources

On the concept of attractor

open access: yesCommunications in Mathematical Physics, 1985
There is no agreement in the literature regarding the definition of the concept of attractor in dynamical systems theory. The purpose of this paper is to propose another definition of this term, based on the concept of probable asymptotic behavior of orbits. Definitions of attractor range from the concepts of Lyapunov stability and asymptotic stability
openaire   +3 more sources

Remarks on the Mathematical Modeling of Gene and Neuronal Networks by Ordinary Differential Equations

open access: yesAxioms
In the theory of gene networks, the mathematical apparatus that uses dynamical systems is fruitfully used. The same is true for the theory of neural networks. In both cases, the purpose of the simulation is to study the properties of phase space, as well
Diana Ogorelova, Felix Sadyrbaev
doaj   +1 more source

Developing dynamic field theory architectures for embodied cognitive systems with cedar

open access: yesFrontiers in Neurorobotics, 2016
Embodied artificial cognitive systems such as autonomous robots or intelligent observers connect cognitive processes to sensory and effector systems in real time. Prime candidates for such embodied intelligence are neurally inspired architectures.
Oliver Lomp   +3 more
doaj   +1 more source

Human brain dynamics and spatiotemporal trajectories during threat processing

open access: yeseLife
Functional MRI (fMRI) research has traditionally investigated task processing using static blocked or event-related designs. Consequently, our understanding of threat processing remains limited to findings from paradigms with restricted dynamics. In this
Joyneel Misra, Luiz Pessoa
doaj   +1 more source

Nonsupersymmetric attractors [PDF]

open access: yesPhysical Review D, 2005
We consider theories with gravity, gauge fields and scalars in four-dimensional asymptotically flat space-time. By studying the equations of motion directly we show that the attractor mechanism can work for non-supersymmetric extremal black holes. Two conditions are sufficient for this, they are conveniently stated in terms of an effective potential ...
Goldstein, Kevin   +3 more
openaire   +2 more sources

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