Results 41 to 50 of about 88,741 (169)

Complex Dynamics of Intelligence‐Level Adjustment in Intelligent and Connected Vehicle Manufacturers

open access: yesComplexity, Volume 2026, Issue 1, 2026.
Against the backdrop of software monetization and carbon constraints reshaping competition, it is necessary to identify the stability boundary for intelligence adjustment. We build a heterogeneous duopoly of fuel‐vehicle (FV) and new‐energy‐vehicle (NEV) firms that jointly choose output and intelligence each period, where intelligence shifts effective ...
Chongde Wang   +2 more
wiley   +1 more source

Incorporating Memory Effects in Population Ecology Using Fractional Derivatives: Stability Perspectives, Bifurcations, and Chaos Control

open access: yesComplexity, Volume 2026, Issue 1, 2026.
This study investigates a discrete‐time predator–prey model that includes both prey refuge and memory effects. The research identifies the conditions under which fixed points exist and remain stable. A key focus is placed on analyzing different types of bifurcation—such as period doubling (PD), Neimark–Sacker (NS), and strong resonances (1 : 2, 1 : 3 ...
S. M. Sohel Rana   +2 more
wiley   +1 more source

Neimark-Sacker bifurcation in a discrete dynamical model of population genetics [PDF]

open access: yes, 2007
In this paper we investigate a genetic model initiated by Gábor Tusnády. This model is a four-dimensional system of difference equations which describes the change of distribution of genotypes from generation to generation in the case of one locus and ...
Attila Dénes, Dénes Attila
core   +1 more source

A Dynamical Analysis of Supply Chain Systems Under a Dynamic Game Framework Considering Green Technology Innovation

open access: yesDiscrete Dynamics in Nature and Society, Volume 2026, Issue 1, 2026.
A dynamic model of a green supply chain, comprising two manufacturers incorporating green technology innovation and one product component supplier, was constructed based on a gradient adjustment mechanism. The dynamic behavior of the system was analyzed through stability analysis of equilibrium points and bifurcation conditions, using parameter ...
Minjuan Li, Ahmed Ezzat Matouk
wiley   +1 more source

Dynamical analysis of discretized Logistic model with Caputo- Fabrizio fractional derivative [PDF]

open access: yesComputational Ecology and Software, 2021
In this paper we consider a fractional order Logistic model with Caputo-Fabrizio fractional derivative. By applying two-step Adams-Bashforth scheme, we obtain a system of difference equations.
H. Karakaya   +3 more
doaj  

Bifurcation and Stability of Two-Dimensional Activator–Inhibitor Model with Fractional-Order Derivative

open access: yesFractal and Fractional, 2023
In organisms’ bodies, the activities of enzymes can be catalyzed or inhibited by some inorganic and organic compounds. The interaction between enzymes and these compounds is successfully described by mathematics.
Messaoud Berkal   +1 more
doaj   +1 more source

The Complex Dynamics of Automobile Manufacturer Competition Model on Video Platforms

open access: yesDiscrete Dynamics in Nature and Society, Volume 2026, Issue 1, 2026.
Video platforms have significantly broadened the marketing and advertising channels available to automobile manufacturers, leading to reduced transaction costs and increased profits for participants. Through building a dynamic automobile manufacturer competition model with bounded rationality, we have revealed the following conclusions: Adjustment ...
Jianli Xiao   +2 more
wiley   +1 more source

The existence of Neimark-Sacker bifurcation on a discrete-time SIS-Epidemic model incorporating logistic growth and allee effect [PDF]

open access: yes, 2022
This article investigates the dynamical properties of a discrete time SIS-Epidemic model incorporating logistic growth rate and Allee effect. The forward Euler discretization method is employed to obtain the discrete-time model. All possible fixed points
Resmawan, Resmawan   +3 more
core   +1 more source

Dynamics and Bifurcations in a Two‐Species Ricker Competition Model With Nonmonotonic Growth

open access: yesDiscrete Dynamics in Nature and Society, Volume 2026, Issue 1, 2026.
This study investigates the dynamics of a discrete‐time competition model involving two species with nonmonotonic growth rates. The system is formulated through coupled Ricker‐type equations that incorporate both intraspecific and interspecific interactions.
Sujay Goldar   +5 more
wiley   +1 more source

Estudo da bifurcação de Neimark-Sacker [PDF]

open access: yes
This dissertation deals with a local bifurcation for planar smooth mappings, depending on a real parameter, called Neimark-Sacker bifurcation of codimension 1, which, in a certain sense, shares many similarities with the Hopf bifurcation for ordinary ...
CARDOSO, Júlio Cesar Silveira
core   +1 more source

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