Results 51 to 60 of about 117,517 (263)

Turing Instability and Pattern Formation in an Activator-Inhibitor System with Nonlinear Diffusion

open access: yes, 2014
In this work we study the effect of density dependent nonlinear diffusion on pattern formation in the Lengyel--Epstein system. Via the linear stability analysis we determine both the Turing and the Hopf instability boundaries and we show how nonlinear ...
Gambino, G.   +2 more
core   +1 more source

Spontaneous spatial fractal pattern formation in absorptive systems [PDF]

open access: yes, 2012
We predict, for the first time to our knowledge, that purely-absorptive nonlinearity can support spontaneous spatial fractal pattern formation. A passive optical ring cavity with a thin slice of saturable absorber is analyzed.
Christian, J M   +2 more
core   +1 more source

Turing–Hopf bifurcation and spatiotemporal patterns in a Gierer–Meinhardt system with gene expression delay

open access: yesNonlinear Analysis, 2021
In this paper, we consider the dynamics of delayed Gierer–Meinhardt system, which is used as a classic example to explain the mechanism of pattern formation. The conditions for the occurrence of Turing, Hopf and Turing–Hopf bifurcation are established by
Shuangrui Zhao   +2 more
doaj   +1 more source

Key Features of Turing Systems are Determined Purely by Network Topology

open access: yesPhysical Review X, 2018
Turing’s theory of pattern formation is a universal model for self-organization, applicable to many systems in physics, chemistry, and biology. Essential properties of a Turing system, such as the conditions for the existence of patterns and the ...
Xavier Diego   +3 more
doaj   +1 more source

Noise–Seeded Developmental Pattern Formation in Filamentous Cyanobacteria

open access: yesLife, 2018
Under nitrogen-poor conditions, multicellular cyanobacteria such as Anabaena sp. PCC 7120 undergo a process of differentiation, forming nearly regular, developmental patterns of individual nitrogen-fixing cells, called heterocysts, interspersed between ...
Rinat Arbel-Goren   +3 more
doaj   +1 more source

Most stable patterns among three-dimensional Turing patterns [PDF]

open access: yesJapan Journal of Industrial and Applied Mathematics, 2007
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Shoji, Hiroto, Yamada, Kohtaro
openaire   +3 more sources

Predator–prey pattern formation driven by population diffusion based on Moore neighborhood structure

open access: yesAdvances in Difference Equations, 2019
Diffusion-driven instability is a basic nonlinear mechanism for pattern formation. Therefore, the way of population diffusion may play a determinative role in the spatiotemporal dynamics of biological systems. In this research, we launch an investigation
Tousheng Huang   +6 more
doaj   +1 more source

Steady-state bifurcation of FHN-type oscillator on a square domain

open access: yesNonlinear Analysis, 2023
The Turing patterns of reaction-diffusion equations defined over a square region are more complex because of the D4-symmetry of the spatial region. This leads to the occurrence of multiple equivariant Turing bifurcations.
Chunrui Zhang   +2 more
doaj   +1 more source

Turing Patterns and Biological Explanation [PDF]

open access: yesDisputatio, 2017
AbstractTuring patterns are a class of minimal mathematical models that have been used to discover and conceptualize certain abstract features of early biological development. This paper examines a range of these minimal models in order to articulate and elaborate a philosophical analysis of their epistemic uses.
openaire   +4 more sources

Spatial pattern formation in chemical and biological systems [PDF]

open access: yes, 1997
One of the central issues in developmental biology is the formation of spatial pattern in the embryo. A number of theories have been proposed to account for this phenomenon.
Chau, H. N. P.   +2 more
core   +2 more sources

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