Results 111 to 120 of about 170,441 (221)

Dynamical Behavior of a Modified Leslie–Gower One Prey–Two Predators with Competition

open access: yesMathematics, 2020
We study the dynamics of a modified Leslie–Gower one prey–two predators model with competition between predator populations. The model describes complex dynamics in the permanence, global stability and bifurcation.
Dian Savitri   +3 more
doaj   +1 more source

Morphology transition at depinning in a solvable model of interface growth in a random medium

open access: yes, 2013
We propose a simple, exactly solvable, model of interface growth in a random medium that is a variant of the zero-temperature random-field Ising model on the Cayley tree.
Ohta, Hiroki   +2 more
core   +3 more sources

Mathematical Simulation of Optimal Control Measures to Avoid Chickenpox Infection

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 2025, Issue 1, 2025.
This work presents a comprehensive mathematical analysis of the chickenpox transmission model, including positivity, existence, invariant region, and uniqueness of the solution. We enhance the model by introducing optimal control measures using two time‐dependent control variables: prevention measures like vaccination and movement constraints, and ...
Nada A. Almuallem   +5 more
wiley   +1 more source

A bacteriophage model based on CRISPR/Cas immune system in a chemostat

open access: yesMathematical Biosciences and Engineering, 2017
Clustered regularly interspaced short palindromic repeats (CRISPRs) along with Cas proteins are a widespread immune system across bacteria and archaea.
Mengshi Shu, Rui Fu, Wendi Wang
doaj   +1 more source

Spiral attractors as the root of a new type of "bursting activity" in the Rosenzweig-MacArthur model

open access: yes, 2018
We study the peculiarities of spiral attractors in the Rosenzweig-MacArthur model, that describes dynamics in a food chain "prey-predator-superpredator".
Bakhanova, Yu. V.   +4 more
core   +1 more source

Local Bifurcation and Global Stability of an Eco‐Epidemiological Model Incorporating Fear Effect and Prey Harvesting

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 2025, Issue 1, 2025.
In ecological point of view, fears from predator may reduce the reproduction of prey and harvesting and intraspecific competition among predators, may changes the behavior of dynamical interaction between predator and their prey. In this paper, a Holling Type II prey–predator model with SI‐type of disease in prey has been modified and analyzed. Firstly,
Sozan Fuad Aziz   +4 more
wiley   +1 more source

Predator–Prey Interaction with Fear Effects: Stability, Bifurcation and Two-Parameter Analysis Incorporating Complex and Fractal Behavior

open access: yesFractal and Fractional
This study investigates the dynamics of predator–prey interactions with non-overlapping generations under the influence of fear effects, a crucial factor in ecological research.
Qamar Din   +2 more
semanticscholar   +1 more source

Bifurcation Behavior Analysis in a Predator-Prey Model

open access: yesDiscrete Dynamics in Nature and Society, 2016
A predator-prey model is studied mathematically and numerically. The aim is to explore how some key factors influence dynamic evolutionary mechanism of steady conversion and bifurcation behavior in predator-prey model.
Nan Wang   +5 more
doaj   +1 more source

The Dynamical Analysis of Food‐Web System With a Group Defense and Antipredator Property

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 2025, Issue 1, 2025.
Prey employ group defense as a tactic to increase their chances of escaping predator attacks. Antipredator behavior, which involves synchronized movements and heightened awareness to deceive predators, may result from it. When one prey species has group defensive systems while the other does not, there is a complex interaction between two competing ...
Rasha Ali Hamodi   +4 more
wiley   +1 more source

Interplay between media and social influence in the collective behavior of opinion dynamics

open access: yes, 2015
Messages conveyed by media act as a major drive in shaping attitudes and inducing opinion shift. On the other hand, individuals are strongly affected by peer pressure while forming their own judgment.
Castellano, Claudio, Colaiori, Francesca
core   +1 more source

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