Results 21 to 30 of about 6,342,861 (330)
On Targeted Control over Trajectories of Dynamical Systems Arising in Models of Complex Networks
Mathematics, 2023 The question of targeted control over trajectories of systems of differential equations encountered in the theory of genetic and neural networks is considered. Examples are given of transferring trajectories corresponding to network states from the basin
Diana Ogorelova +2 more
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Model of an automated biotechnical system for analyzing pulseograms as a kind of edge devices
Journal of Edge Computing, 2023 The rapid development of computer biometrics over the past 2-3 decades is largely due to the development and widespread introduction into clinical practice of new methods of studying human body health, including pulse methods.
Tetiana M. Nikitchuk +3 more
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Acta et Commentationes: Ştiinţe Exacte şi ale Naturii, 2023 The present study delves into the investigation of phase portraits of polynomial differential systems, which are systems of differential equations of the form $\frac{dx}{dt} = P(x,y), \frac{dy}{dt} = Q(x,y)$, where $x$ and $y$ are the dependent ...
Vadim Repeșco
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Nonlinear behaviors of bandpass sigma delta modulators with stable system matrices [PDF]
, 2005 It has been established that a class of bandpass sigma delta modulators (SDMs) may exhibit state space dynamics which are represented by elliptical or fractal patterns confined within trapezoidal regions when the system matrices are marginally stable. In
Ho, Yuk-Fan +3 more
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Effect of energetic electrons on transcritical bifurcation of low-frequency electrostatic waves in plasma [PDF]
مجله علوم و فنون هستهای, 2022 This paper studies the bifurcation types and phase portrait properties of ion-acoustic traveling waves in a plasma comprising warm adiabatic ions and energetic electrons with a nonthermal distribution function. A dynamical system is first derived for the
H. Alinejad
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Global phase portraits of a SIS model [PDF]
Applied Mathematics and Computation, 2013 In the qualitative theory of ordinary differential equations, we can find many papers whose objective is the classification of all the possible topological phase portraits of a given family of differential system. Most of the studies rely on systems with real parameters and the study consists of outlining their phase portraits by finding out some ...
Oliveira, Regilene, Rezende, Alex C.
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Phase Portraits of the Leslie-Gower System
Acta 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
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Phase portrait control for 1D monostable and bistable reaction–diffusion equations [PDF]
Nonlinearity, 2018 We consider the problem of controlling parabolic semilinear equations arising in population dynamics, either in finite time or infinite time. These are the monostable and bistable equations on for a density of individuals , with Dirichlet controls taking
Camille Pouchol +2 more
semanticscholar +1 more source
Phase portraits of the Higgins–Selkov system
Discrete & 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
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Applied 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
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