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Relaxation oscillations of a piecewise-smooth slow-fast Bazykin's model with Holling type Ⅰ functional response

open access: yesMathematical Biosciences and Engineering, 2023
In this paper, we consider the dynamics of a slow-fast Bazykin's model with piecewise-smooth Holling type Ⅰ functional response. We show that the model has Saddle-node bifurcation and Boundary equilibrium bifurcation.
Xiao Wu, Shuying Lu , Feng Xie
doaj   +1 more source

Persistence of Heteroclinic Cycles Connecting Repellers in Banach Spaces

open access: yesJournal of Mathematics, 2022
This paper is concerned with persistence of heteroclinic cycles connecting repellers in Banach spaces. It is proved that if a map with a regular and nondegenerate heteroclinic cycle connecting repellers undergoes a small perturbation, then the perturbed ...
Zongcheng Li
doaj   +1 more source

Exploring Limit Cycle Bifurcations in the Presence of a Generalized Heteroclinic Loop

open access: yesMathematics, 2023
This work revisits the number of limit cycles (LCs) in a piecewise smooth system of Hamiltonian with a heteroclinic loop generalization, subjected to perturbed functions through polynomials of degree m.
Erli Zhang, Stanford Shateyi
doaj   +1 more source

Homoclinic Orbits in Several Classes of Three-Dimensional Piecewise Affine Systems with Two Switching Planes

open access: yesMathematics, 2021
The existence of homoclinic orbits or heteroclinic cycle plays a crucial role in chaos research. This paper investigates the existence of the homoclinic orbits to a saddle-focus equilibrium point in several classes of three-dimensional piecewise affine ...
Yanli Chen, Lei Wang, Xiaosong Yang
doaj   +1 more source

Dynamics in a Predator–Prey Model with Cooperative Hunting and Allee Effect

open access: yesMathematics, 2021
This paper deals with a diffusive predator–prey model with two delays. First, we consider the local bifurcation and global dynamical behavior of the kinetic system, which is a predator–prey model with cooperative hunting and Allee effect.
Yanfei Du, Ben Niu, Junjie Wei
doaj   +1 more source

Dynamics in diffusive Leslie–Gower prey–predator model with weak diffusion

open access: yesNonlinear Analysis, 2022
This paper is concerned with the diffusive Leslie–Gower prey–predator model with weak diffusion. Assuming that the diffusion rates of prey and predator are sufficiently small and the natural growth rate of prey is much greater than that of predators ...
Xiao Wu, Mingkang Ni
doaj   +1 more source

Emerging criticality at bifurcation points in heteroclinic dynamics

open access: yesPhysical Review Research, 2020
Heteroclinic dynamics is a suitable framework to describe transient dynamics that is characteristic for ecological as well as neural systems, in particular for cognitive processes.
Maximilian Voit   +1 more
doaj   +1 more source

Fear Effect on a Predator–Prey Model with Non-Differential Fractional Functional Response

open access: yesFractal and Fractional, 2023
In this paper, we study the factor of the fear effect in a predator–prey model with prey refuge and a non-differentiable fractional functional response due to the group defense.
Salam Mohammed Ghazi Al-Mohanna   +1 more
doaj   +1 more source

Scalar Field Evolution at Background and Perturbation Levels for a Broad Class of Potentials

open access: yesFortschritte der Physik, Volume 71, Issue 10-11, November 2023., 2023
Abstract In this paper, a non‐interacting scalar field cosmology with an arbitrary potential using the f‐deviser method that relies on the differentiability properties of the potential is investigated. Using this alternative mathematical approach, a unified dynamical system analysis at a scalar field's background and perturbation levels with arbitrary ...
Genly Leon   +5 more
wiley   +1 more source

An Example of Symmetry Breaking to Heteroclinic Cycles [PDF]

open access: yesJournal of Differential Equations, 1997
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Martin Golubitsky, Chuanze Hou
openaire   +1 more source

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