Results 11 to 20 of about 747,954 (250)
Some new results on charged compact boson stars
Physics Letters B, 2017 In this work we present some new results obtained in a study of the phase diagram of charged compact boson stars in a theory involving a complex scalar field with a conical potential coupled to a U(1) gauge field and gravity.
Sanjeev Kumar +4 more
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The problem of two fixed centers: bifurcation diagram for positive energies [PDF]
, 2015 We give a comprehensive analysis of the Euler-Jacobi problem of motion in the field of two fixed centers with arbitrary relative strength and for positive values of the energy.
Marcello Seri
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A cubic-quadratic phenomenological model explains the spiking, chaotic and bursting behaviors of neuron [PDF]
Scientific ReportsIn this manuscript, we present a two-dimensional phenomenological spiking neuron model. By analyzing the bifurcation diagram and phase portraits of the two-dimensional model, Andronov-Hopf bifurcation, saddle-point bifurcation and saddle-point on ...
Shuihan Qiu, Yeyuge Chen, Zengru Di
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Deformations of the Bifurcation Diagram Due to Discretization [PDF]
Mathematics of Computation, 1985 With a singular perturbation problem occurring in chemical reaction processes, substantial changes of the bifurcation diagram due to discretization are demonstrated. It is shown that a discrete system can possess any number of solutions, whereas the underlying continuous problem has exactly one solution.
J. Bigge, E. Bohl
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Bifurcation diagrams of population models with nonlinear, diffusion
Journal of Computational and Applied Mathematics, 2005 AbstractWe develop analytical and numerical tools for the equilibrium solutions of a class of reaction–diffusion models with nonlinear diffusion rates. Such equations arise from population biology and material sciences. We obtain global bifurcation diagrams for various nonlinear diffusion functions and several growth rate functions.
Young He Lee +3 more
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Inferring bifurcation diagrams with transformers
Chaos: An Interdisciplinary Journal of Nonlinear ScienceThe construction of bifurcation diagrams is an essential component of understanding nonlinear dynamical systems. The task can be challenging when one knows the equations of the dynamical system and becomes much more difficult if only the underlying data associated with the system are available.
Lyra Zhornyak +2 more
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Phase portraits and bifurcation diagram of the Gray-Scott model
Journal of Mathematical Analysis and Applications, 2020 We give a complete classification of the phase portraits in the Poincaré disk for the cubic polynomial systems ˙ x = 1−x−axy2, ˙ y = −by + axy2, in R2 according with the values of its two parameters a and b. These differential systems correspond to the Gray-Scott model.
Ting Chen, Shimin Li, Jaume Llibre
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Research on the complex dynamical behavior of H-bridge inverter with RLC load [PDF]
Scientific ReportsComplex dynamical behaviors such as bifurcation and chaos exist in H-bridge inverter with RLC load, and these nonlinear behaviors will greatly increase the harmonic content of the output current and reduce the stability and reliability of the system.
Mingjian Wu +3 more
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Transition characteristics of the dynamic behavior of a vehicle wheel-rail vibro-impact system
Electronic Research Archive, 2023 A two-degree-of-freedom vehicle wheel-rail impact vibration system model is developed, and the equivalent impact stiffness and damping of the rail are fitted applying ABAQUS, taking into account the high and low irregularity generated by the welded ...
Yang Jin, Wanxiang Li, Hongbing Zhang
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Classical Bifurcation Diagrams by Quantum Means [PDF]
Annalen der Physik, 2017 Asymptotic state of an open quantum system may change substantially upon variations of system parameters. These changes can be often identified as bifurcation transitions in the classical mean‐filed equations describing evolution of the relevant observables.
Ivanchenko, Mikhail V. +5 more
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