Article
Mathematics, Applied
Daipeng Kuang, Yubo Liu, Jianli Li
Summary: This paper proposes and investigates two types of impulsive delay stochastic budworm population models, and provides sufficient criteria for the long-term behavior of the solutions. Numerical simulations confirm the theoretical results.
JOURNAL OF APPLIED MATHEMATICS AND COMPUTING
(2023)
Article
Computer Science, Interdisciplinary Applications
Shangzhi Li, Shangjiang Guo
Summary: A new method is introduced to analyze the stochastic permanence and extinction of a stochastic predator-prey model with a general functional response. The study investigates the existence of a stationary distribution and the impact of white noises on the predator and prey populations. Numerical simulations show that appropriate intensities of white noises can lead to population fluctuations, while too large intensities may cause extinction.
MATHEMATICS AND COMPUTERS IN SIMULATION
(2021)
Article
Mathematics, Applied
Chen Qianjun, Liu Zijian, Tan Yuanshun, Yang Jin
Summary: A stochastic hybrid population model with Allee effect, Markovian switching, and impulsive perturbations is proposed and studied in this paper. The conditions for extinction and permanence are obtained, and some asymptotic properties are investigated.
JOURNAL OF APPLIED MATHEMATICS AND COMPUTING
(2023)
Article
Mathematics, Applied
Jianjun Jiao, Qi Quan, Xiangjun Dai
Summary: In this paper, a new impulsive predator-prey model with predator population seasonally large-scale migration is presented. The sufficient conditions for the permanence and existence of globally asymptotically stable prey-extinct boundary periodic solution are obtained through theories of impulsive differential equations. Our results provide theoretical insights for population ecology management.
APPLIED MATHEMATICS LETTERS
(2022)
Article
Mathematics, Applied
Xiaoyue Li, Qi Wang, Renji Han
Summary: This paper investigates an impulsive diffusive predator-prey system with modified functional responses. Conditions for the system's permanence and the existence of a unique globally stable periodic solution are obtained using the comparison theorem and Lyapunov functions, with numerical simulations provided to illustrate the main results.
QUALITATIVE THEORY OF DYNAMICAL SYSTEMS
(2021)
Article
Mathematics, Applied
Wenxu Ning, Zhijun Liu, Lianwen Wang, Ronghua Tan
Summary: This paper presents a stochastic mutualism model with saturation effect and pulse toxicant input, and derives a set of sufficient conditions. Analysis results are supported by numerical simulations, and the effects of various factors on the survival of species are investigated.
JOURNAL OF APPLIED MATHEMATICS AND COMPUTING
(2021)
Article
Mathematics, Applied
Qianjun Chen, Zijian Liu, Yuanshun Tan, Jin Yang
Summary: This paper proposes a stochastic nonautonomous hybrid population model with Allee effect, Markovian switching and impulsive perturbations, and investigates its stochastic dynamics. Sufficient conditions for the extinction and permanence are established, and the asymptotic properties and growth rates of positive solutions are studied. The main results are verified through numerical simulations, and the impact of the Allee effect, Markovian switching, and impulsive perturbations on the system is analyzed.
JOURNAL OF APPLIED ANALYSIS AND COMPUTATION
(2023)
Article
Mathematics, Applied
Yuanfu Shao
Summary: This paper proposes an impulsive stochastic predator-prey system with the Beddington-DeAngelis functional response. The study focuses on the uniform continuity, global attractivity, extinction, and permanence of solutions. Conditions for periodic Markovian processes and the stationary distribution of solutions are given, supplemented by numerical simulations.
Article
Mathematical & Computational Biology
Siyu Chen, Zhijun Liu, Ronghua Tan, Lianwen Wang
Summary: A system of impulsive stochastic differential equations is proposed as a model for two-species facultative mutualism subject to impulsive and two coupling noise source perturbations, taking saturation effect into account. Sufficient criteria for extinction and permanence of the system are established, supported by extensive simulation figures. Effects of coupling white noises, impulses, growth rates, competition rates, and mutualism rates on population survival are also studied.
INTERNATIONAL JOURNAL OF BIOMATHEMATICS
(2021)
Article
Mathematical & Computational Biology
Yan Zhang, Shujing Gao, Shihua Chen
Summary: This paper proposes a new stochastic predator-prey model with impulsive perturbation and Crowley-Martin functional response, systematically investigates the dynamical properties of the model, and derives the existence and stochastically ultimate boundedness of a global positive solution using the theory of impulsive stochastic differential equations. Some sufficient criteria are obtained to guarantee the extinction and a series of persistence in the mean of the system, and conditions for the stochastic permanence and global attractivity of the model are provided. Numerical simulations are performed to support the qualitative results.
MATHEMATICAL BIOSCIENCES AND ENGINEERING
(2021)
Article
Mathematics, Applied
Cuicui Jiang, Wendi Wang, Jiangtao Yang
Summary: The Gompertz growth is crucial in simulating the development of animals, plants, and cancer cells. In this study, we investigate a competitive model with Gompertz growth perturbed by environmental noises. We obtain explicit threshold conditions for the stochastic permanence and extinction of populations, revealing the impact of stochastic noises on the competitive exclusion and coexistence of two competing populations.
APPLIED MATHEMATICS LETTERS
(2022)
Article
Computer Science, Interdisciplinary Applications
Wenjie Li, Ying Zhang, Lihong Huang
Summary: This paper presents a qualitative analysis of a predator-prey model with nonmonotonic functional response and impulsive effects. It investigates the existence and stability of periodic solutions and explores various dynamic phenomena, including order-1 and order-2 periodic solutions, as well as globally stable equilibrium points. The theoretical results are supported by numerical simulations.
MATHEMATICS AND COMPUTERS IN SIMULATION
(2023)
Article
Mathematics, Applied
Hongrui Wei, Xianping He, Yong Li
Summary: This paper formulates and explores a nonautonomous impulsive stochastic predator-prey system with Beddington-DeAngelis (BD) functional response, where only the prey has a disease, which incorporates modified saturated incidence. The sufficient criteria of extinction and non-persistence in the mean of the target model are established, revealing that different intensities of stochastic perturbations contribute to dynamics of the system mentioned above. Stochastically ultimate boundedness is examined, and we further establish sufficient conditions for global attractivity. Our analytical findings are verified through numerical simulations.
JOURNAL OF APPLIED MATHEMATICS AND COMPUTING
(2022)
Article
Mathematics
Qi Quan, Xiangjun Dai, Jianjun Jiao
Summary: This paper proposes a predator-prey model with impulsive diffusion and transient/nontransient impulsive harvesting. The stability and persistence of the model under simultaneous harvesting of predators and prey are investigated.
Article
Mathematics, Interdisciplinary Applications
Jing Li, Quanxin Zhu
Summary: This article discusses the stability problem of stochastic functional differential systems (SFDSs) with event-triggered impulsive control (ETIC). Two types of event-triggered mechanisms (ETM) are proposed, namely, continuous ETM with state-dependent waiting time and periodic ETM with state-dependent sampling period. By employing Lyapunov functionals and mathematical induction, sufficient conditions are developed to achieve the stability of SFDS. Two illustrative examples are provided to validate the theoretical results.
CHAOS SOLITONS & FRACTALS
(2023)