Results 61 to 70 of about 115,644 (220)
Analysis of pattern dynamics for a nonlinear model of the human cortex via bifurcation theories [PDF]
, 2014 This thesis examines the bifurcations, i.e., the emergent behaviours, for the Waikato cortical model under the influence of the gap-junction inhibitory diffusion D₂ (identified as the Turing bifurcation parameter) and the time-to-peak for hyperpolarising
Wang, Kaier
core
Wave propagation in the Lorenz-96 model [PDF]
Nonlinear Processes in Geophysics, 2018 In this paper we study the spatiotemporal properties of waves in the Lorenz-96 model and their dependence on the dimension parameter n and the forcing parameter F.
D. L. van Kekem, A. E. Sterk
doaj +1 more source
Mathematical Analysis and Simulations of a Cancer Model With Interleukins and Delayed Immunotherapy
Mathematical Methods in the Applied Sciences, Volume 49, Issue 12, Page 13946-13970, August 2026.ABSTRACT A new system of delayed differential equations for tumor‐immune system interactions is proposed and studied. The system describes the interactions between tumor cells and the immune system at the most aggressive phase of cancer, where tumor cells have developed mechanisms from earlier stages to evade immune responses.
Laid Boudjellal +2 more
wiley +1 more source
Some Applications of Bifurcation Formulae to the Period Maps of Delay Differential Equations [PDF]
, 2005 Our purpose is to present some applications of the bifurcation formulae derived in [13] for periodic delay differential equations. We prove that a sequence of Neimark-Sacker bifurcations occurs as the parameter increases.
Röst, Gergely
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Advanced Physics Research, Volume 5, Issue 7, July 2026.Active reactance in electro‐thermal memristors emerges intrinsically from rapid thermal switching of device resistance, linking current‐controlled and voltage‐controlled negative differential resistance to neuronal spiking dynamics. Opposing temperature coefficients of resistance give rise to active inductive or capacitive responses, enabling tunable ...
Fatme Jardali +4 more
wiley +1 more source
Symmetry Bifurcation and Chaos of the Poincaré Map, in a Three degree-of-freedom Vibro impact System
工程科学与技术, 2008 :A three degree-of-freedom vibro impact system with symmetric constraining stops is considered. The Poincaré map of the system is established, and the symmetry of the Poincaré map is derived in detail. The theory of bifurcation of fixed points is applied
乐源, 谢建华
doaj
Bifurcation Analysis of a Lotka-Volterra Mutualistic System with Multiple Delays
Abstract and Applied Analysis, 2014 A class of Lotka-Volterra mutualistic system with time delays of benefit and feedback delays is introduced. By analyzing the associated characteristic equation, the local stability of the positive equilibrium and existence of Hopf bifurcation are ...
Xin-You Meng, Hai-Feng Huo
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Impedance Spectroscopy of Bifurcation Oscillations in S‐Type Self‐Oscillatory Devices
Advanced Physics Research, Volume 5, Issue 7, July 2026.Impedance spectroscopy (IS) reveals stability regimes and bifurcation dynamics in S‐type self‐oscillatory devices. By linking nonlinear control theory with frequency‐domain measurements, experimental signatures of oscillations, entrainment, and phase locking are directly identified.
Gonzalo Rivera‐Sierra +5 more
wiley +1 more source
Human Brain Mapping, Volume 47, Issue 10, July 2026.We used fMRI data from a trial in psychedelic‐naïve healthy participants to show that psilocybin increases dynamic fronto‐striatal‐thalamic activity 4 weeks after dosing. Computational models revealed that reduced structure–function coupling is consistent with the emergence of increased activity dynamics, as well as increased bottom‐up and reduced top ...
Lorenzo Pasquini +14 more
wiley +1 more source
Oscillators Near Hopf Bifurcation
, 2015 In this paper the differential transformation method (DTM) is employed to solve a system of linear differential equations derived for energy optimal control theory and nonlinear differential equations and their systems for oscillators near Hopf ...
Tongxing Li, Helena Samajova
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