Results 41 to 50 of about 8,750 (185)

Spatiotemporal Patterns Formed by a Discrete Nutrient-Phytoplankton Model with Time Delay

open access: yesComplexity, 2020
In this research, a continuous nutrient-phytoplankton model with time delay and Michaelis–Menten functional response is discretized to a spatiotemporal discrete model.
Feifan Zhang   +4 more
doaj   +1 more source

Turing-Hopf patterns in a morphochemical model for electrodeposition with cross-diffusion

open access: yesApplications in Engineering Science, 2021
This paper focuses on the impact of cross-diffusion for Turing-Hopf instability in a morphochemical model for electrodeposition (DIB) and completes the analysis on the role of cross-diffusion on pattern formation in electrodeposition we recently carried ...
Deborah Lacitignola   +2 more
doaj   +1 more source

Spatiotemporal pattern formation in a three-variable CO oxidation reaction model [PDF]

open access: yes, 2018
The spatiotemporal pattern formation is studied in the catalytic carbon monoxide oxidation reaction that takes into account the diffusion processes over the Pt(110) surface, which may contain structurally different areas. These areas are formed during CO-
Bzovska, I. S., Mryglod, I. M.
core   +2 more sources

Pattern formation driven by cross--diffusion in a 2D domain

open access: yes, 2012
In this work we investigate the process of pattern formation in a two dimensional domain for a reaction-diffusion system with nonlinear diffusion terms and the competitive Lotka-Volterra kinetics. The linear stability analysis shows that cross-diffusion,
Gambino, G.   +2 more
core   +1 more source

Density-dependent effects on Turing patterns and steady state bifurcation in a Beddington–DeAngelis-type predator–prey model

open access: yesBoundary Value Problems, 2019
In this paper, Turing patterns and steady state bifurcation of a diffusive Beddington–DeAngelis-type predator–prey model with density-dependent death rate for the predator are considered.
Hongwu Xu, Shengmao Fu
doaj   +1 more source

Turbulent patterns in wall-bounded flows: a Turing instability? [PDF]

open access: yes, 2012
In their way to/from turbulence, plane wall-bounded flows display an interesting transitional regime where laminar and turbulent oblique bands alternate, the origin of which is still mysterious.
Manneville, Paul
core   +3 more sources

Turing bifurcation in nonlinear competition models with delay [PDF]

open access: yesQuarterly of Applied Mathematics, 1996
Turing instability in reaction-diffusion and predator-prey models including diffusion and Volterra-type distributed delays in the interspecies interaction terms is considered. For general functional forms of the reaction terms/prey birth rate-predator death rate, and delays modeled by the “weak” generic kernel a exp ⁡
Choudhury, S. Roy, Fosser, C.
openaire   +2 more sources

Instabilities and Patterns in Coupled Reaction-Diffusion Layers

open access: yes, 2012
We study instabilities and pattern formation in reaction-diffusion layers that are diffusively coupled. For two-layer systems of identical two-component reactions, we analyze the stability of homogeneous steady states by exploiting the block symmetric ...
Catlla, Anne J.   +2 more
core   +1 more source

Turing Instability and Turing–Hopf Bifurcation in Diffusive Schnakenberg Systems with Gene Expression Time Delay [PDF]

open access: yesJournal of Dynamics and Differential Equations, 2018
For delayed reaction-diffusion Schnakenberg systems with Neumann boundary conditions, critical conditions for Turing instability are derived, which are necessary and sufficient. And existence conditions for Turing, Hopf and Turing-Hopf bifurcations are established.
Jiang, Weihua, Wang, Hongbin, Cao, Xun
openaire   +2 more sources

Drifting Pattern Domains in a Reaction-Diffusion System with Nonlocal Coupling

open access: yes, 2000
Drifting pattern domains (DPDs), moving localized patches of traveling waves embedded in a stationary (Turing) pattern background and vice versa, are observed in simulations of a reaction-diffusion model with nonlocal coupling.
Baer, Markus   +3 more
core   +1 more source

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