Abstract
In this paper, we consider a modified Leslie-type prey–generalist predator system with piecewise–smooth Holling type I functional response. Considering the reproduction rate of the prey population higher than that of the predator, the model becomes a slow–fast system that mathematically leads to a singular perturbation problem. To analyse the stability of the boundary equilibrium on the switching boundary, we use a generalized Jacobian that enables us to investigate how the eigenvalues jump at the boundary point. We investigate the slow–fast system by employing geometric singular perturbation theory and blow-up technique that reveal a wide range of interesting complicated dynamical phenomena. We have studied existence of saddle-node bifurcation, Bogdanov–Takens bifurcation, bistability, singular Hopf bifurcation, canard orbits, multiple relaxation oscillations, saddle-node bifurcation of limit cycle and boundary equilibrium bifurcations. Numerical simulations are carried out to substantiate the analytical results.
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09 May 2022
A Correction to this paper has been published: https://doi.org/10.1007/s11071-022-07502-7
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Acknowledgements
The first author acknowledges the financial support from the Department of Science and Technology (DST), Govt. of India, under the scheme “Fund for Improvement of S&T Infrastructure (FIST)” [File No. SR/FST/MS-I/2019/41].
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Saha, T., Pal, P.J. & Banerjee, M. Slow–fast analysis of a modified Leslie–Gower model with Holling type I functional response. Nonlinear Dyn 108, 4531–4555 (2022). https://doi.org/10.1007/s11071-022-07370-1
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DOI: https://doi.org/10.1007/s11071-022-07370-1