Results 81 to 90 of about 1,013 (204)

Numerical detection of suppression of quasi‐periodic solutions

open access: yesProceedings in Applied Mathematics and Mechanics, Volume 24, Issue 3, October 2024.
Abstract Dynamical systems can show so‐called quasi‐periodic solutions, which are composed of two or more so‐called incommensurable frequencies. Solving these systems in the time‐domain is not favorable, due to the fact that quasi‐periodic solutions have no finite periodicity, thus it is unclear how long simulations must be carried out in order to ...
Alexander Seifert, Hartmut Hetzler
wiley   +1 more source

Some Applications of Bifurcation Formulae to the Period Maps of Delay Differential Equations

open access: yes, 2005
Our purpose is to present some applications of the bifurcation formulae derived in [13] for periodic delay differential equations. We prove that a sequence of Neimark-Sacker bifurcations occurs as the parameter increases.
Röst, Gergely
core  

Analysis of the Stability and Chaotic Dynamics of an Ecological Model

open access: yesComplexity, Volume 2024, Issue 1, 2024.
Modelling has become an eminent tool in the study of ecological systems. Ecological modelling can help implement sustainable development, mathematical models, and system analysis that explain how ecological processes can promote the sustainable management of resources.
Muhammad Aqib Abbasi   +6 more
wiley   +1 more source

Neimark-sacker bifurcations near degenerate grazing point in a two degree-of-freedom impact oscillator

open access: yes, 2018
© 2019 by ASME. Saddle-node or period-doubling bifurcations of the near-grazing impact periodic motions have been extensively studied in the impact oscillators, but the near-grazing Neimark-Sacker bifurcations have not been discussed yet.
Ji, J, Wen, G, Yin, S, Deng, S
core   +1 more source

Study on the Compatibility of Multi-Bifurcations by Simulations of Pattern Formation

open access: yesIEEE Access, 2019
Bifurcation is considered the main mathematical mechanism for the formation of spatial self-organizing patterns in many studies. When bifurcation was initially defined, only the transition of the system from stable state to unstable state or from uniform
Feifan Zhang   +4 more
doaj   +1 more source

Using Shannon Entropy and Contagion Index to Interpret Pattern Self-Organization in a Dynamic Vegetation-Sand Model

open access: yesIEEE Access, 2020
Vegetation pattern is one of the most important self-organized patterns in ecological systems. The formation mechanism of vegetation patterns has been attributed to dynamic bifurcations, while from the external perspective, the regularity of patterns ...
Feifan Zhang   +4 more
doaj   +1 more source

Matrix and Inverse Matrix Projective Synchronization of Fractional‐Order Time‐Delay Chaotic Systems with Uncertainty

open access: yesInternational Journal of Differential Equations, Volume 2024, Issue 1, 2024.
In the present article, the matrix projective synchronization (MPS) and the inverse matrix projective synchronization (IMPS) have been analyzed with fractional‐order chaotic systems with uncertain terms. First, we theoretically discussed both types of synchronizations.
Vijay K. Shukla   +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  

Global dynamics and bifurcation analysis of a host–parasitoid model with strong Allee effect

open access: yesJournal of Biological Dynamics, 2017
In this paper, we study the global dynamics and bifurcations of a two-dimensional discrete time host–parasitoid model with strong Allee effect. The existence of fixed points and their stability are analysed in all allowed parametric region.
Abdul Qadeer Khan   +2 more
doaj   +1 more source

Investigating Global Stability and Bifurcation in an Ecological Dynamical System

open access: yesComplexity, Volume 2024, Issue 1, 2024.
We consider a continuous‐time model describing the interaction between phytoplankton and zooplankton using a Holling type‐II response. We then transform this continuous‐time model into a discrete‐time counterpart using a fractional‐order discretization method.
Muhammad Salman Khan   +4 more
wiley   +1 more source

Home - About - Disclaimer - Privacy