Results 101 to 110 of about 4,320 (200)
Stability and Bifurcations in a Discrete-Time Eco-Evolutionary Logistic Model
MathematicsIn this paper I study a two-dimensional discrete-time evolutionary logistic-type model describing the coupled dynamics of population density and a continuously evolving trait.
Rafael Luís
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Morphology transition at depinning in a solvable model of interface growth in a random medium
, 2013 We propose a simple, exactly solvable, model of interface growth in a random medium that is a variant of the zero-temperature random-field Ising model on the Cayley tree.
Ohta, Hiroki +2 more
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Mathematical remarks on transcritical bifurcation in Hamiltonian systems
, 2007 This article is meant as a mathematical appendix or comment on [BT]. We first consider the notion of transcritical bifurcations of fixed points of general area-preserving maps, and then adress some questions related to [BT] on bifurcation in Poincar maps of 2-dimensional Hamiltonian systems. [BT] M. Brack and K.
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Exploring chaos and bifurcation in a discrete prey–predator based on coupled logistic map
Scientific ReportsThis research paper investigates discrete predator-prey dynamics with two logistic maps. The study extensively examines various aspects of the system’s behavior.
Mohammed O. Al-Kaff +3 more
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Dynamical behaviors of a two-competitive metapopulation system with impulsive control
Advances in Difference Equations, 2017 In this paper, we study the dynamical behaviors of a two-competitive metapopulation system with impulsive control and focus on the stable coexistence of the superior and inferior species.
Shasha Tian, Yepeng Xing, Tao Ma
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Endogenous income taxes and indeterminacy in dynamic models: When Diamond meets Ramsey again. [PDF]
This paper introduces fiscal increasing returns, through endogenous labor income tax rates as in Schmitt-Grohe and Uribe (1997), into the overlapping generations model with endogenous labor, consumption in both periods of life and homothetic preferences (
Chen, Yan, Zhang, Yan
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International Journal of Bifurcation and ChaosIn this paper, 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 degrader. At the bifurcation caused by this functional shift, an invariant curve collapses to a point [Formula: see text] while, simultaneously, two fixed
Ernest Fontich +3 more
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On spurious steady-state solutions of explicit Runge-Kutta schemes [PDF]
The bifurcation diagram associated with the logistic equation v sup n+1 = av sup n (1-v sup n) is by now well known, as is its equivalence to solving the ordinary differential equation u prime = alpha u (1-u) by the explicit Euler difference scheme.
Griffiths, D. F. +2 more
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Complex dynamics of a nonlinear discrete predator-prey system with Allee effect
Open MathematicsThe transition between strong and weak Allee effects in prey provides a simple regime shift in ecology. In this article, we study a discrete predator-prey system with Holling type II functional response and Allee effect. First, the number of fixed points
Wang Jing, Lei Ceyu
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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
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