Results 21 to 30 of about 212,455 (290)

Phase Portraits of the Leslie-Gower System

open access: yesActa Mathematica Scientia, 2022
In this paper we characterize the phase portraits of the Leslie-Gower model for competition among species. We give the complete description of their phase portraits in the Poincaré disc (i.e., in the compactification of R adding the circle S of the infinity) modulo topological equivalence. It is well-known that the equilibrium point of the Leslie-Gower
Llibre, Jaume, Valls, Claudia
openaire   +2 more sources

Phase portraits of the Higgins–Selkov system

open access: yesDiscrete & Continuous Dynamical Systems - B, 2022
<p style='text-indent:20px;'>In this paper we study the dynamics of the Higgins–Selkov system</p><p style='text-indent:20px;'><disp-formula> <label/> <tex-math id="FE1"> \begin{document}$ \begin{equation*} \dot{x} = 1-xy^\gamma, \quad\dot{y} = \alpha y(xy^{\gamma -1}-1), \end{equation*} $\end{document} </tex-math ...
Llibre, Jaume, Mousavi, Marzieh
openaire   +5 more sources

Lower Limb Inter-Joint Coordination of Unilateral Transfemoral Amputees: Implications for Adaptation Control

open access: yesApplied Sciences, 2020
The gait of transfemoral amputees can be made smoother by adjusting the inter-joint coordination of both lower limbs. In this study, we compared the inter-joint coordination of the amputated and non-amputated limbs of unilateral amputees to able-bodied ...
Zhi Xu   +6 more
doaj   +1 more source

Analysis of stochastic bifurcations with phase portraits [PDF]

open access: yesPLOS ONE, 2018
We propose a method to obtain phase portraits for stochastic systems. Starting from the Fokker-Planck equation, we separate the dynamics into a convective and a diffusive part. We show that stable and unstable fixed points of the convective field correspond to maxima and minima of the stationary probability distribution if the probability current ...
Marc Mendler   +2 more
openaire   +5 more sources

Quantum phases of a chain of strongly interacting anyons [PDF]

open access: yes, 2014
We study a strongly interacting chain of anyons with fusion rules determined by SO(5)2. The phase portrait is identified with a combination of numerical and analytical techniques.
Finch, Peter E.   +4 more
core   +3 more sources

Colored noise influence on the system evolution

open access: yes, 2001
We present a picture of phase transitions of the system with colored multiplicative noise. Considering the noise amplitude as the power-law dependence of the stochastic variable $x^a$ we show the way to phase transitions disorder-order and order-disorder.
Kharchenko, D. O., Kokhan, S.
core   +2 more sources

Unfolding the Phase Space Structure of Noisy Time Series by means of Angular First-Return Maps

open access: yesDiscrete Dynamics in Nature and Society, 2015
A new approach which uses the joint probability matrix computation of noisy time series is proposed to construct a phase space portrait which reflects the orbit visitation frequency of the different regions of the phase space.
Javier Villa Briongos   +3 more
doaj   +1 more source

PRECISE PHASE PORTRAIT CONSTRUCTION FOR AN INVERTED PENDULUM USING CUBIC BEZIER CURVES

open access: yesEskişehir Osmangazi Üniversitesi Mühendislik ve Mimarlık Fakültesi Dergisi, 2020
A cubic Bezier curve formulation is used for generating phase portrait of an inverted pendulum system. Assuming that the cart and pendulum masses, pendulum length, and friction coefficient values in the inverted pendulum model are unknown ...
Gökhan DINDIŞ   +1 more
doaj   +1 more source

Non equilibrium dynamics of an optomechanical Dicke model

open access: yes, 2015
Motivated by the experimental realization of Dicke model in optical cavities, we model an optomechanical system consisting of a two level BEC with transverse pumping.
Bhattacherjee, Aranya B.   +1 more
core   +1 more source

Physics of brain dynamics: Fokker-Planck analysis reveals changes in EEG delta-theta interactions in anaesthesia [PDF]

open access: yes, 2009
We use drift and diffusion coefficients to reveal interactions between different oscillatory processes underlying a complex signal and apply the method to EEG delta and theta frequencies in the brain.
A Bahraminasab   +12 more
core   +1 more source

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