Results 101 to 110 of about 90,042 (199)

The local Bifurcation of Dynamic Behavior of Predator-Prey System with Refuge for both Species 

Ibn Al-Haitham Journal for Pure and Applied Sciences
The main purpose of this paper is to study a predator – prey dynamical system consisting of three species prey, specialized predator and generalist predator namely H (t), I (t) and J (t) respectively, w food web and refuge for the prey and specialized ...
Intsar Matlob, Saad Naji
doaj   +1 more source

Qualitative and Bifurcation Analysis of an SIR Epidemic Model with Saturated Treatment Function and Nonlinear Pulse Vaccination

Discrete Dynamics in Nature and Society, 2016
An SIR epidemic model with saturated treatment function and nonlinear pulse vaccination is studied. The existence and stability of the disease-free periodic solution are investigated.
Xiangsen Liu, Binxiang Dai
doaj   +1 more source

Bifurcation Phenomena in Rocking [PDF]

, 2001
In this paper, bifurcation phenomena of rocking of a rectangular parallelopiped block are dealt with. Since the rocking is a typical nonlinear vibration, the equations of motion are solved numerically and bifurcation diagrams, fixed points and invariant ...
小寺, 忠, 山田, 泰裕, KOTERA, Tadashi, YAMADA, Yasuhiro   +3 more
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Bifurcation analysis and chaos control for a plant–herbivore model with weak predator functional response

Journal of Biological Dynamics, 2019
The interaction between plants and herbivores is one of the most fundamental processes in ecology. Discrete-time models are frequently used for describing the dynamics of plants and herbivores interaction with non-overlapping generations, such that a new
Qamar Din, M. Sajjad Shabbir, M. Asif Khan, Khalil Ahmad   +3 more
doaj   +1 more source

Dynamical analysis of a complex competitive two-strain epidemic network model with vaccination

Partial Differential Equations in Applied Mathematics
Developing accurate models to replicate epidemic transmission poses a significant challenge for researchers both now and in the foreseeable future.
A. Abdelkhalek, A.H. Abdel Kader, I.L. El-Kalla, A. Elsaid, Amr Elsonbaty, K.S. Nisar   +5 more
doaj   +1 more source

Transcritical Bifurcation and Neimark–Sacker Bifurcation in a Discrete Predator–Prey Model with Constant-Effort Harvesting

Mathematics
This study develops a semi-discretized time system from the continuous-time Rosenzweig–-MacArthur model via the method of piecewise constant argument—a discretization approach that preserves both mathematical rigor and biological interpretability. For the proposed system incorporating constant-effort harvesting on both prey and predator populations, we
Mianjian Ruan, Xianyi Li, Yang Yu, Feng Qian   +3 more
openaire   +1 more source

Functional shift-induced degenerate transcritical Neimark-Sacker bifurcation in a discrete hypercycle

, 2023
In this article we investigate the impact of functional shifts in a time-discrete cross-catalytic system. We use the hypercycle model considering that one of the species shifts from a cooperator to a degradader.
Perona, J., Fontich, E., Guillamon, A., Sardanyés, J.   +3 more
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Bifurcation Curves in Discontinuous Maps [PDF]

Several discrete-time dynamic models are ultimately expressed in the form of iterated piecewise linear functions, in one or two-dimensional spaces. In this paper we study a one-dimensional map made up of three linear pieces which are separated by two ...
Gian Italo Bischi, Fabio Tramontana, Laura Gardini   +2 more
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Existence of Bifurcation in Macroeconomic Dynamics: Grandmont was Right [PDF]

Grandmont (1985) found that the parameter space of the most classical dynamic general-equilibrium macroeconomic models are stratified into an infinite number of subsets supporting an infinite number of different kinds of dynamics, from monotonic ...
Yijun He, William Barnett
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Stationary Bifurcation Control for Systems with Uncontrollable Linearization [PDF]

, 1999
Stationary bifurcation control is studied under the assumption thatthe critical zero eigenvalue is uncontrollable for thelinearized system. The development facilitates explicit constructionof feedback control laws that render the bifurcation ...
Taihyun Kim, Abed, Eyad H.
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