Results 31 to 40 of about 337 (161)
A Viral Infection Model with a Nonlinear Infection Rate
Boundary Value Problems, 2009 A viral infection model with a nonlinear infection rate is constructed based on empirical evidences. Qualitative analysis shows that there is a degenerate singular infection equilibrium.
Yumei Yu +3 more
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Slow–fast Bogdanov–Takens bifurcations
Journal of Differential Equations, 2011 The paper deals with smooth families of slow-fast systems that represent a very general class of singular perturbation problems near a turning point. The authors introduce the notion of slow-fast Bogdanov-Takens bifurcation and provide a complete study of the perturbations from planar vector fields having a line of zeros, representing the singular ...
De Maesschalck, P., Dumortier, F.
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Bogdanov-Takens bifurcation in predator-prey systems
Discrete and Continuous Dynamical Systems - S, 2020 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Zeng, Bing, Deng, Shengfu, Yu, Pei
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Palaeontology, Volume 65, Issue 3, May/June 2022., 2022 Abstract Bite traces on fossil bones are key to deciphering feeding ecology and trophic interactions of vertebrate past ecosystems. However, similarities between traces produced by different carnivorous taxa with similar dentitions, and misidentifications due to equifinality, hinder confident identifications of the bite makers.
Eudald Mujal +5 more
wiley +1 more source
Bifurcation of an SIRS Model with a Modified Nonlinear Incidence Rate
Mathematics, 2023 An SIRS epidemic model with a modified nonlinear incidence rate is studied, which describes that the infectivity is strong at first as the emergence of a new disease or the reemergence of an old disease, but then the psychological effect will weaken the ...
Yingying Zhang, Chentong Li
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Bifurcation analysis in a diffusive phytoplankton–zooplankton model with harvesting
Boundary Value Problems, 2021 A diffusive phytoplankton–zooplankton model with nonlinear harvesting is considered in this paper. Firstly, using the harvesting as the parameter, we get the existence and stability of the positive steady state, and also investigate the existence of ...
Yong Wang
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Bifurcations of a Ratio-Dependent Holling-Tanner System with Refuge and Constant Harvesting
Abstract and Applied Analysis, 2013 The bifurcation properties of a predator prey system with refuge and constant harvesting are investigated. The number of the equilibria and the properties of the system will change due to refuge and harvesting, which leads to the occurrence of several ...
Xia Liu, Yepeng Xing
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Dynamics of a Leslie-Gower predator-prey system with cross-diffusion
Electronic Journal of Qualitative Theory of Differential Equations, 2020 A Leslie–Gower predator–prey system with cross-diffusion subject to Neumann boundary conditions is considered. The global existence and boundedness of solutions are shown.
Rong Zou, Shangjiang Guo
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Nonlinear AnalysisThis paper investigates the effect of fear effect and constant-type harvesting on the dynamic of a Leslie–Gower predator–prey model. Initially, an analysis is carried out to identify all potential equilibria and evaluate their stability.
Chenyang Huangfu, Zhong Li
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Dynamics of a Beddington-DeAngelis type predator-prey system with constant rate harvesting
Electronic Journal of Qualitative Theory of Differential Equations, 2017 In the paper, a predator-prey system with Beddington-DeAngelis functional response and constant rate harvesting is considered. Various dynamical behaviors of the system including saddle-node points and a cusp of codimension 2 are investigated by using ...
Jaeun Lee, Hunki Baek
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