Results 21 to 30 of about 62,585 (218)

Fermionic quantization of Hopf solitons [PDF]

open access: yes, 2006
In this paper we show how to quantize Hopf solitons using the Finkelstein-Rubinstein approach. Hopf solitons can be quantized as fermions if their Hopf charge is odd.
Speight, J.Martin, Krusch, Steffen
core   +1 more source

Dynamics of a plant-herbivore model with a chemically-mediated numerical response

open access: yesMathematics in Applied Sciences and Engineering, 2021
A system of two ordinary differential equations is proposed to model chemically-mediated interactions between plants and herbivores by incorporating a toxin-modified numerical response.
Lin Wang, James Watmough, Fang Yu
doaj   +1 more source

Ambiskew Hopf algebras [PDF]

open access: yes, 2013
Necessary and sufficient conditions are obtained for an ambiskew polynomial algebra A over a Hopf k-algebra R to possess the structure of a Hopf algebra extending that of R, in which the added variables X+ and X- are skew primitive.
Brown, K.A., Brown, K., Macauley, M.
core   +1 more source

Dynamics of a Discretization Physiological Control System

open access: yesDiscrete Dynamics in Nature and Society, 2007
We study the dynamics of solutions of discrete physiological control system obtained by Midpoint rule. It is shown that a sequence of Hopf bifurcations occurs at the positive equilibrium as the delay increases and we analyze the stability of the solution
Xiaohua Ding, Huan Su
doaj   +1 more source

Hopf Bifurcation Analysis of the Halvorsen System

open access: yesZanco Journal of Pure and Applied Sciences
This paper investigates local bifurcations in the Halvorsen system, focusing specifically on transcritical and Hopf bifurcations. The behavior of equilibrium points during bifurcations is studied using Sotomayor's theorem for transcritical bifurcation ...
Kardo Baiz Othman, Adnan Ali Jalal
doaj   +1 more source

Bifurcation Analysis in a Two-Dimensional Neutral Differential Equation

open access: yesAbstract and Applied Analysis, 2013
The dynamics of a 2-dimensional neural network model in neutral form are investigated. We prove that a sequence of Hopf bifurcations occurs at the origin as the delay increases.
Ming Liu, Xiaofeng Xu
doaj   +1 more source

Hopf Bifurcations in a Mathematical Model for Economic Growth, Corruption, and Unemployment: Computation of Economic Limit Cycles

open access: yesAxioms
In this paper, we investigate the existence of Hopf bifurcations in a mathematical model that includes economic growth, corruption, and unemployment. The model links these social and economic factors to provide insights into the dynamics of the economy ...
Ogochukwu Ifeacho   +1 more
doaj   +1 more source

Studies on the Existence of Unstable Oscillatory Patterns Bifurcating from Hopf Bifurcations in a Turing Model

open access: yesJournal of Applied Mathematics, 2014
We revisit a homogeneous reaction-diffusion Turing model subject to the Neumann boundary conditions in the one-dimensional spatial domain. With the help of the Hopf bifurcation theory applicable to the reaction-diffusion equations, we are capable of ...
Yan Zhang, Zhenhua Bao
doaj   +1 more source

Stability and Hopf Bifurcation Analysis on a Bazykin Model with Delay

open access: yesAbstract and Applied Analysis, 2014
The dynamics of a prey-predator system with a finite delay is investigated. We show that a sequence of Hopf bifurcations occurs at the positive equilibrium as the delay increases.
Jianming Zhang   +2 more
doaj   +1 more source

Dynamics of adding variable prey refuge and an Allee effect to a predator–prey model

open access: yesAlexandria Engineering Journal, 2022
Prey refuge from predators can play an important role in stabilising an ecological system by reducing interactions between species, while Allee effects can arise from a range of biological phenomena, such as anti-predator vigilance, genetic trends and ...
Hafizul Molla   +3 more
doaj   +1 more source

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