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相关论文: Dynamics of Performances in a Competitive Model

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A new model to investigate environmental effects of genetically distinguishable predators is presented. The Holling type II response function, modelling feeding satiation, leads to persistent system's oscillations, as in classical…

动力系统 · 数学 2014-03-19 Clara Viberti , Ezio Venturino

In this paper, we consider the inverse problem of determining the coefficients of interaction terms within some Lotka-Volterra models, with support from boundary observation of its non-negative solutions. In the physical background, the…

偏微分方程分析 · 数学 2024-04-23 Yuhan Li , Hongyu Liu , Catharine W. K. Lo

We investigate the global dynamics of a special case of the classical Lotka-Volterra competition-diffusion system in spatially heterogeneous environment. This model indicates that the evolution of the density of the predator is independent…

动力系统 · 数学 2020-08-18 Leqi Chen , Shuang Chen

The dynamic behavior of a multiagent system in which the agent size $s_{i}$ is variable it is studied along a Lotka-Volterra approach. The agent size has hereby for meaning the fraction of a given market that an agent is able to capture…

混沌动力学 · 物理学 2012-09-04 L. F. Caram , C. F. Caiafa , A. N. Proto , M. Ausloos

We explore the complex dynamical behavior of simple predator-prey models of biological coevolution that account for interspecific and intraspecific competition for resources, as well as adaptive foraging behavior. In long kinetic Monte…

种群与进化 · 定量生物学 2009-10-26 Per Arne Rikvold

A two-dimensional homomorphic logistic map that preserves features of the Lotka-Volterra equations was proposed. To examine chaos, iteration plots of the population, Lyapunov exponents calculated from Jacobian eigenvalues of the $2$D…

混沌动力学 · 物理学 2024-02-27 Wei Shan Lee , Hou Fai Chan , Ka Ian Im , Kuan Ieong Chan , U Hin Cheang

The paper was suggested by a brief note of the second author about the application of the Hubbert curve to predict decay of resource exploitation. A further suggestion came from the interpretation of the Hubbert curve in terms of a specific…

种群与进化 · 定量生物学 2022-09-07 Enrico Canuto , Daniele Mazza

This is a continuation of our work \cite{dns-part1} to investigate the long-time dynamics of a two species competition model of Lotka-Volterra type with nonlocal diffusions, where the territory (represented by the real line $\R$) of a…

偏微分方程分析 · 数学 2024-03-29 Yihong Du , Wenjie Ni , Linfei Shi

We analyze the long term behavior of interacting populations which can be controlled through harvesting. The dynamics is assumed to be discrete in time and stochastic due to the effect of environmental fluctuations. We present extinction…

种群与进化 · 定量生物学 2021-02-18 Alexandru Hening

We first present a predator-prey model for two species and then extend the model to three species where the two predator species engage in mutualistic predation. Constant effort harvesting and the impact of by-catch issue are also…

动力系统 · 数学 2020-09-03 Mohammad M. Amirian , I. N. Towers , Z. Jovanoski , Andrew J. Irwin

In this work, we examine a kinetic framework for modeling the time evolution of size distribution densities of two populations governed by predator-prey interactions. The model builds upon the classical Boltzmann-type equations, where the…

偏微分方程分析 · 数学 2025-11-27 Andrea Bondesan , Marco Menale , Giuseppe Toscani , Mattia Zanella

The two-species population dynamics model is the simplest paradigm of interspecies interaction. Here, we include intraspecific competition to the Lotka-Volterra model and solve it analytically. Despite being simple and thoroughly studied,…

种群与进化 · 定量生物学 2015-03-17 Brenno Caetano Troca Cabella , Alexandre Souto Martinez , Fabiano Ribeiro

In the classical Lotka-Volterra population models, the interacting species affect each other's growth rate. We propose an alternative model, in which the species affect each other through the limitation coefficients, rather then through the…

动力系统 · 数学 2020-08-14 Philip Korman

We present two models of competitive learning, which are respectively interfacial and cooperative learning. This learning is outcome-related, so that spatially and temporally local environments influence the conversion of a given site…

统计力学 · 物理学 2009-10-31 Anita Mehta , J. M. Luck

The broad application range of the predator-prey modelling enabled us to apply it to represent the dynamics of the work-employment system. For the adopted period, we conclude that this dynamics is chaotic in the beginning of the time series…

计算工程、金融与科学 · 计算机科学 2011-03-21 Nilo Serpa , Jose Roberto Steiner

In this work, we investigate the long-time dynamics of a two species competition model of Lotka-Volterra type with nonlocal diffusions. One of the species, with density $v(t,x)$, is assumed to be a native in the environment (represented by…

偏微分方程分析 · 数学 2024-03-29 Yihong Du , Wenjie Ni , Linfei Shi

This paper considers competitive Lotka-Volterra population dynamics with jumps. The contributions of this paper are as follows. (a) We show stochastic differential equation (SDE) with jumps associated with the model has a unique global…

概率论 · 数学 2011-02-11 Jianhai Bao , Xuerong Mao , Geroge Yin , Chenggui Yuan

We analyze the bifurcation phenomenon for the following two-component competition system: \begin{equation*} \begin{cases} -\Delta u_1=\mu u_1(1-u_1)-\beta \alpha u_1u_2,& \text{in}\ B_1\subset \mathbb{R}^N, -\Delta u_2=\sigma…

偏微分方程分析 · 数学 2024-04-23 Zaizheng Li , Susanna Terracini

This paper is concerned with a Lotka-Volterra type competition model with free boundaries in time-periodic environment. One species is assumed to adopt nonlocal dispersal and the other one adopts mixed dispersal, which is a combination of…

偏微分方程分析 · 数学 2021-01-21 Qiaoling Chen , Fengquan Li , Sanyi Tang , Feng Wang

The possible control of competitive invasion by infection of the invader and multiplicative noise is studied. The basic model is the Lotka-Volterra competition system with emergent carrying capacities. Several stationary solutions of the…

种群与进化 · 定量生物学 2015-08-24 Ivo Siekmann , Horst Malchow