Results 81 to 90 of about 5,108 (187)

Effect of Axial and Radial Flow on the Hydrodynamics in a Taylor Reactor

open access: yesFluids, 2022
This paper investigates the impact of combined axial through flow and radial mass flux on Taylor–Couette flow in a counter-rotating configuration, in which different branches of nontrivial solutions appear via Hopf bifurcations.
Sebastian A. Altmeyer
doaj   +1 more source

Homoclinic and Heteroclinic Bifurcations in rf SQUIDs

open access: yesZeitschrift für Naturforschung A, 1988
Abstract The Melnikov method is used to discuss the parameter dependence of homoclinic and heteroclinic bifurcations for the rf SQUID system. Also the case of strong damping is treated. Because of the complicated potential the resulting integrals have to be evaluated numerically.
B. Bruhn, B. P. Koch
openaire   +1 more source

Complex Dynamics and Chaos Control of Discrete Prey–Predator Model With Caputo Fractional Derivative

open access: yesComplexity, Volume 2025, Issue 1, 2025.
This work examines a discrete prey–predator model using the fractional derivative. The conditions for the existence and stability of the fixed points in the model are identified. The analysis is centered on exploring various bifurcations at the positive fixed point to understand their ecological implications.
Rowshon Ara   +2 more
wiley   +1 more source

Combining intransitive and higher‐order effects in a coupled oscillator framework: A case study of an ant community

open access: yesEcology, Volume 105, Issue 2, February 2024.
Abstract A growing body of literature recognizes that pairwise species interactions are not necessarily an appropriate metaphorical molecule of community ecology. Two examples are intransitive competition and nonlinear higher‐order effects. While these two processes have been discussed extensively, the explicit analysis of how the two of them behave ...
John Vandermeer, Ivette Perfecto
wiley   +1 more source

Bounded Orbits and Multiple Scroll Coexisting Attractors in a Dual System of Chua System

open access: yesIEEE Access, 2020
A special three-dimensional chaotic system was proposed in 2016, as a dual system of Chua system, which is satisfied $a_{12}\cdot $ $a_{21}< 0$ .
Yue Liu   +3 more
doaj   +1 more source

Relaxation Oscillation in SEIR Epidemic Models with the Intrinsic Growth Rate

open access: yesComplexity, Volume 2024, Issue 1, 2024.
The periodic oscillation transmission of infectious diseases is widespread, deep understanding of this periodic pattern and exploring the generation mechanism, and identifying the specific factors that lead to such periodic outbreaks, which are of very importanceto predict and control the spread of infectious diseases.
Yingying Zhang   +3 more
wiley   +1 more source

The Hunt Opinion Model-An Agent Based Approach to Recurring Fashion Cycles. [PDF]

open access: yesPLoS ONE, 2016
We study a simple agent-based model of the recurring fashion cycles in the society that consists of two interacting communities: "snobs" and "followers" (or "opinion hunters", hence the name of the model).
Rafał Apriasz   +3 more
doaj   +1 more source

Heteroclinic Bifurcations and Invariant Manifolds in Rocking Block Dynamics

open access: yesZeitschrift für Naturforschung A, 1991
Abstract A simple model of rigid block motion under the influence of external perturbations is discussed. For periodic forcings we prove the existence of Smale horseshoe chaos in the dynamics. For slender blocks a heteroclinic bifurcation condition is calculated exactly, i.e. without using perturbation methods.
Bruhn, B., Koch, B. P.
openaire   +2 more sources

Chaos Control, Codimension‐One and Codimension‐Two 1 : 2 Strong Resonance Bifurcation Analysis of a Predator‐Prey Model with Holling Types I and III Functional Responses

open access: yesComplexity, Volume 2024, Issue 1, 2024.
We study the existence of fixed points, local stability analysis, bifurcation sets at fixed points, codimension‐one and codimension‐two bifurcation analysis, and chaos control in a predator‐prey model with Holling types I and III functional responses. It is proven that the model has a trivial equilibrium point for all involved parameters but interior ...
Abdul Qadeer Khan   +4 more
wiley   +1 more source

Nonlinear Dynamics of the Rock-Paper-Scissors Game with Mutations

open access: yes, 2015
We analyze the replicator-mutator equations for the Rock-Paper-Scissors game. Various graph-theoretic patterns of mutation are considered, ranging from a single unidirectional mutation pathway between two of the species, to global bidirectional mutation ...
Strogatz, Steven H.   +1 more
core   +1 more source

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