Article
Mathematics, Interdisciplinary Applications
Mengxin Chen, Ranchao Wu, Hongxia Liu, Xiaoxue Fu
Summary: This paper investigates the Leslie-Gower type predator-prey system with the ratio-dependent Holling III functional response and Neumann boundary conditions. The existence of the codimension-two Turing-Hopf point is identified, and amplitude equations are derived using weakly nonlinear analysis to explore the spatiotemporal dynamics near the C2THP. The temporal patterns, hexagonal patterns, and plane wave patterns can be presented through amplitude equations, along with the sufficient conditions of their existence and stability.
CHAOS SOLITONS & FRACTALS
(2021)
Article
Mathematics, Applied
Heping Jiang
Summary: In this paper, complex dynamical behaviors of a diffusive Leslie-Gower predator-prey model with a ratio-dependent Holling type III functional response and nonlinear prey harvesting under homogeneous Neumann boundary conditions are studied. The existence and stability of extinction and coexistence equilibrium states are determined by analyzing the distribution of eigenvalues, and the bifurcations of the system are investigated. Additionally, Turing-Hopf bifurcation points induced by harvesting rate and delay are derived based on theoretical analysis and numerical simulation. Our results indicate that delay and nonlinear prey harvesting rates can generate spatially inhomogeneous periodic solutions.
Article
Mathematics, Applied
Fethi Souna, Abdelkader Lakmeche
Summary: This paper deals with a new approximation of a diffusive predator-prey model with Leslie-Gower term and social behavior for the prey subject to Neumann boundary conditions. The influence of prey's herd shape on the predator-prey interaction in the presence of Leslie-Gower term is studied, considering system stability, bifurcation, and dynamics introduced by self-diffusion. The prey's herd shape rate is discussed in relation to prey and predator equilibrium densities and bifurcating points, with theoretical results illustrated through graphical representations.
MATHEMATICAL METHODS IN THE APPLIED SCIENCES
(2021)
Article
Computer Science, Interdisciplinary Applications
Xiao Yan, Yimamu Maimaiti, Wenbin Yang
Summary: This paper investigates a Leslie-Gower predator-prey model with prey-taxis and analyzes the stability and bifurcation phenomena of the model. The study finds that prey-taxis can cause Turing instability and generate spatio-temporal patterns, and sufficiently large prey-taxis can stabilize the instability caused by diffusion.
MATHEMATICS AND COMPUTERS IN SIMULATION
(2022)
Article
Mathematics, Interdisciplinary Applications
Fatao Wang, Ruizhi Yang
Summary: In this paper, we investigate a cross-diffusion predator-prey system with Holling type functional response. We analyze the local stability, Turing instability, spatial pattern formation, Hopf and Turing-Hopf bifurcation of the equilibrium. Numerical simulation reveals that the system experiences cross-diffusion-driven instability and exhibits various patterns such as spots, stripe-spot mixtures, and labyrinthine patterns. The study also shows that the intrinsic growth rate coefficient and the environmental carrying capacity coefficient are crucial factors for the stability of the predator-prey system.
CHAOS SOLITONS & FRACTALS
(2023)
Article
Mathematics, Interdisciplinary Applications
Lei Kong, Fengjiao Lu
Summary: The influence of indirect prey-taxis on the dynamics of a predator-prey system with predator functional response is studied. The study analyzes the stability and bifurcations of the system, deriving critical values of the indirect prey-taxis coefficient. The research finds that attractive indirect prey-taxis can destabilize the system and induce the emergence of spatially inhomogeneous periodic solutions. The secretion level of chemoattractant by the prey plays a role in determining the likelihood of spatial patterns.
CHAOS SOLITONS & FRACTALS
(2023)
Article
Mathematics, Applied
Hongyu Chen, Chunrui Zhang
Summary: In this paper, we investigate the impact of fear in a Leslie-Gower predator-prey system with ratio-dependent Holling III functional response. We find that the fear effect can lead to interesting dynamical properties, and analyze the relationship between the fear coefficient and the positive equilibrium point. We also study the existence of Turing instability, Hopf bifurcation, and Turing-Hopf bifurcation. Numerical simulations are conducted to validate the theoretical results.
NONLINEAR ANALYSIS-MODELLING AND CONTROL
(2022)
Article
Mathematical & Computational Biology
Hongyu Chen, Chunrui Zhang
Summary: In this paper, we investigate the effect of different types of diffusion on the stability of a Leslie-Gower type reaction-diffusion predator-prey system with an increasing functional response. Our main findings are as follows: (1) in the absence of prey diffusion, diffusion-driven instability can occur; (2) in the absence of predator diffusion, no diffusion-driven instability occurs and an unstable non-constant stationary solution exists; (3) in the presence of both prey diffusion and predator diffusion, the system can exhibit diffusion-driven instability and Turing patterns. We also determine the conditions for the existence of Hopf bifurcation and Turing-Hopf bifurcation, along with the normal form for Turing-Hopf bifurcation. Additionally, we perform numerical simulations for all three cases to validate our theoretical analysis.
INTERNATIONAL JOURNAL OF BIOMATHEMATICS
(2023)
Article
Mathematics
Seralan Vinoth, R. Vadivel, Nien-Tsu Hu, Chin-Sheng Chen, Nallappan Gunasekaran
Summary: This study investigates the impact of fear on prey populations and prey refuges in a predator-harvested Leslie-Gower model. The research focuses on analyzing the number and stability properties of all positive equilibria and uses numerical simulation to evaluate the stability. Additionally, sensitivity investigations are performed on model solutions in relation to fear impact, prey refuges, and harvesting.
Article
Mathematics
Ruizhi Yang, Qiannan Song, Yong An
Summary: This paper considers a diffusive predator-prey system with a functional response that increases in both predator and prey densities. The Turing instability and Hopf bifurcation are studied by analyzing the characteristic roots of the system. By calculating the normal form of the Turing-Hopf bifurcation and conducting numerical simulations, the dynamic properties of different types of solutions in each parameter region of the phase diagram are found to be extremely rich.
Article
Mathematics
Lei Shi, Jiaying Zhou, Yong Ye
Summary: This paper focuses on studying Turing patterns on complex networks, specifically the impact of network topology on spatial patterns in multiplex ER random networks. The results show that diffusion rate and average degree play important roles in the generation of Turing patterns on single-layer networks, while the differentiation of average degrees in different layers controls the generation of Turing patterns on multiplex networks.
Article
Mathematics
Jaume Llibre, Claudia Valls
Summary: In this paper, we characterize the phase portraits of the Leslie-Gower model for competition among species. The complete description of their phase portraits in the Poincare disc, modulo topological equivalence, is given. Furthermore, we examine the origin of the orbits attracted by the equilibrium point of the Leslie-Gower model.
ACTA MATHEMATICA SCIENTIA
(2022)
Article
Mathematics
Jialu Tian, Ping Liu
Summary: This paper discusses the global dynamics of a modified Leslie-Gower predator-prey model with Beddington-DeAngelis functional response and prey-taxis under homogeneous Neumann boundary conditions. It derives the global classical solutions of the system using Morse's iteration of the parabolic equation, which further leads to the global existence of classical solutions with a uniform-in-time bound. Additionally, it establishes the global stability of the spatially homogeneous coexistence steady states under certain parameter conditions by constructing Lyapunov functionals.
ELECTRONIC RESEARCH ARCHIVE
(2022)
Article
Engineering, Mechanical
Tapan Saha, Pallav Jyoti Pal, Malay Banerjee
Summary: This paper investigates a modified Leslie-type prey-generalist predator system with piecewise-smooth Holling type I functional response. By employing geometric singular perturbation theory and blow-up technique, a wide range of interesting and complicated dynamical phenomena are revealed. Numerical simulations are performed to validate the analytical results.
NONLINEAR DYNAMICS
(2022)
Article
Mathematics, Applied
F. Capone, R. De Luca, L. Fiorentino, V. Luongo, G. Massa
Summary: This paper investigates a reaction-diffusion Leslie-Gower predator-prey model with intraguild predation and both self and cross-diffusion. The analysis of the longtime behaviour of the solutions proves the existence of an absorbing set. The existence of patterns is investigated by exploring conditions under which an equilibrium, stable in the absence of diffusion, becomes unstable when diffusion is allowed.
RICERCHE DI MATEMATICA
(2023)
Article
Mathematical & Computational Biology
Yuxuan Tang, Shuling Shen, Linhe Zhu
Summary: In this paper, a SI reaction-diffusion rumor propagation model with nonlinear saturation incidence is studied. The conditions for the existence and local stability of the positive equilibrium point are obtained through stability analysis. The critical value and existence theorem of Turing bifurcation are obtained by selecting suitable variable as the control parameter. Different types of Turing pattern are divided and verified through numerical simulation.
INTERNATIONAL JOURNAL OF BIOMATHEMATICS
(2024)
Article
Mathematical & Computational Biology
Soumitra Pal, Pijush Panday, Nikhil Pal, A. K. Misra, Joydev Chattopadhyay
Summary: This paper investigates a nonlinear ratio-dependent prey-predator model with constant prey refuge, incorporating Allee and fear phenomena in the prey population. The qualitative behaviors of the model are studied around equilibrium points, including Hopf bifurcation and its direction and stability. The study shows that fear of predation risk can have both stabilizing and destabilizing effects, and an increase in prey refuge drives the system towards stability. Numerical simulations using MATLAB software explore the dynamical behaviors of the system.
INTERNATIONAL JOURNAL OF BIOMATHEMATICS
(2024)
Article
Mathematical & Computational Biology
Fengsheng Chien, Hassan Saberi Nik, Mohammad Shirazian, J. F. Gomez-Aguilar
Summary: This paper investigates the stability analysis of an SEIRV model with nonlinear incidence rates and discusses the significance of control factors in disease transmission. The use of Volterra-Lyapunov matrices enables the study of global stability at the endemic equilibrium point. Additionally, an optimal control strategy is proposed to prevent the spread of coronavirus, aiming to minimize the number of infected and exposed individuals as well as treatment costs. Numerical simulations are conducted to further examine the analytical findings.
INTERNATIONAL JOURNAL OF BIOMATHEMATICS
(2024)
Article
Mathematical & Computational Biology
Honglan Zhu, Xuebing Zhang, Hao Zhang
Summary: In this paper, we investigate a delayed diffusive predator-prey model affected by toxic substances. The boundedness and persistence property of the model are studied first. Conditions for the existence of steady state bifurcation, Hopf bifurcation, and Turing bifurcation are obtained by analyzing the characteristic equation. Moreover, the Hopf bifurcation induced by the delay is also studied. Theoretical results are verified by numerical simulation, showing the significant impact of toxic substances on the system dynamics.
INTERNATIONAL JOURNAL OF BIOMATHEMATICS
(2024)
Article
Mathematical & Computational Biology
Liliana Puchuri, Orestes Bueno
Summary: In this study, a predator-prey model of Gause type is investigated. The prey growth rate is influenced by an Allee effect and the predator's impact on the prey is determined by a generalized hyperbolic-type functional response. The behavior of the solutions in the first quadrant and the existence of limit cycles are studied. The existence of equilibrium points and their stability are also analyzed, with a focus on the conditions for a center-type equilibrium. Additionally, the existence of a unique limit cycle for small perturbations of the system is guaranteed.
INTERNATIONAL JOURNAL OF BIOMATHEMATICS
(2024)
Article
Mathematical & Computational Biology
M. M. Abdeslami, L. Basri, M. El Fatini, I. Sekkak, R. Taki
Summary: In this work, a stochastic epidemic model with vaccination, healing and relapse is studied. The existence and uniqueness of the positive solution are proven. Sufficient conditions for extinction and persistence in mean of the stochastic system are established. Additionally, sufficient conditions for the existence of an ergodic stationary distribution to the model are also established, indicating the persistence of the infectious disease. Graphical illustrations of the approximate solutions of the stochastic epidemic model are presented.
INTERNATIONAL JOURNAL OF BIOMATHEMATICS
(2024)
Article
Mathematical & Computational Biology
Yan Zhang, Yuanhua Qiao, Lijuan Duan
Summary: This paper investigates the memristive multidirectional associative memory neural networks (MAMNNs) with mixed time-varying delays in modeling the abrupt synaptic connections in human brain's associative memory. It proves the existence, boundedness, and asymptotical almost periodicity of the solution using Lyapunov function. It also examines the uniqueness and global exponential stability of the almost periodic solution using a new Lyapunov function. The research extends the study on the periodic and almost periodic solutions of bidirectional associative memory neural networks. Numerical examples and simulations are provided to demonstrate the validity of the main results.
INTERNATIONAL JOURNAL OF BIOMATHEMATICS
(2024)
Article
Mathematical & Computational Biology
Xiangjun Dai, Jianjun Jiao, Qi Quan, Airen Zhou
Summary: In this study, a comprehensive pest management model for agricultural production is proposed, involving periodic spraying of pesticides and releasing predatory natural enemies. Using Floquet theory and the comparison theorem of impulsive differential equations, a sufficient condition for the global asymptotic stability of the pest-eradication periodic solution is obtained. The persistence of the system is further studied, and a sufficient condition for the persistence of the system is obtained. Numerical simulations are conducted to verify the theoretical works. The results indicate that the sublethal effects of insecticides and the release of predatory natural enemies play significant roles in pest control in agricultural production.
INTERNATIONAL JOURNAL OF BIOMATHEMATICS
(2024)
Article
Mathematical & Computational Biology
Yan Li, Zhiyi Lv, Fengrong Zhang, Hui Hao
Summary: In this paper, a diffusive predator-prey model with hyperbolic mortality and prey-taxis under homogeneous Neumann boundary condition is studied. The influence of prey-taxis on the local stability of constant equilibria is analyzed. Prey-taxis is found to affect the stability of the unique positive constant equilibrium, but has no influence on the stability of the trivial equilibrium and the semi-trivial equilibrium. Hopf bifurcation and steady state bifurcation related to prey-taxis are then derived, indicating the important role of prey-taxis in the dynamics.
INTERNATIONAL JOURNAL OF BIOMATHEMATICS
(2024)
Article
Mathematical & Computational Biology
Surath Ghosh
Summary: The main goal of this work is to implement the Homotopy perturbation transform method (HPTM) involving the Katugampola fractional operator. A fractional order Hepatitis model is used as an example to analyze the solutions. The integer order model is first converted to a fractional order model in the Caputo sense and then the new operator Katugampola fractional derivative is used to present the model. The HPTM is described to obtain the solution of the proposed model using this new operator, and some analyses are conducted on the operator to prove its efficiency.
INTERNATIONAL JOURNAL OF BIOMATHEMATICS
(2024)
Article
Mathematical & Computational Biology
Zhihui Ma, Shenghua Li, Shuyan Han
Summary: In this paper, a nonlinear infectious disease model is proposed to consider the impact of information on vaccination behavior and contact patterns. The existence of equilibria and stability properties of the model are analyzed using a geometric approach. The double Hopf bifurcation around the endemic equilibrium is shown through mathematical derivation and numerical simulation. The optimal control problem is established and solved using Pontryagin's maximum principle, and the effectiveness of the proposed control strategies is demonstrated through numerical experiments.
INTERNATIONAL JOURNAL OF BIOMATHEMATICS
(2024)
Article
Mathematical & Computational Biology
Yajing Li, Zhihua Liu
Summary: In this paper, a size-stage-structured cooperation model is proposed, which takes into account both size structure and stage structure, as well as obligate and facultative symbiosis in a cooperation system. The model is reduced to a threshold delay equations (TDEs) model using the method of characteristic, which is further transformed into a functional differential equations (FDEs) model. The results of the qualitative analysis of solutions of the FDEs model, including global existence and uniqueness, positivity and boundedness, stability and Hopf bifurcation of positive equilibrium, are established based on the classical theory of FDEs. Numerical simulations are conducted to support the analytical results, showing the importance of size structure and stage structure in the dynamic behavior of the model.
INTERNATIONAL JOURNAL OF BIOMATHEMATICS
(2024)