Results 11 to 20 of about 6,342,861 (330)
Symmetries in Phase Portrait [PDF]
Symmetry, 2020 We construct polynomial dynamical systems x ′ = P ( x ) with symmetries present in the local phase portrait. This point of view on symmetry yields the approaches to ODEs construction being amenable to classical methods of the Spectral Analysis.
Yakov Krasnov, U. K. Koylyshov
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On the n-Dimensional Phase Portraits [PDF]
Applied Sciences, 2019 The phase portrait for dynamic systems is a tool used to graphically determine the instantaneous behavior of its trajectories for a set of initial conditions.
Martín-Antonio Rodríguez-Licea +3 more
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Phase portraits of Bernoulli quadratic polynomial differential systems
Electronic Journal of Differential Equations, 2020 In this article we study a new class of quadratic polynomial differential systems. We classify all global phase portraits in the Poincare disk of Bernoulli quadratic polynomial differential systems in R^2.
Jaume Llibre +2 more
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Results in Physics, 2023 In this paper, the coupled Kundu–Mukherjee–Naskar equation is considered, which is usually used to describe the oceanic rogue waves, hole waves and Bragg grating fibers.
Zhao Li, Hanlei Hu
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International Conference on Rehabilitation Robotics, 2023 Accurate real-time estimation of the gait phase (GP) is crucial for many control methods in exoskeletons and prostheses. A class of approaches to GP estimation construct the phase portrait of a segment or joint angle, and use the normalized polar angle ...
A. Manzoori +6 more
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DYNAMIC OF RIKITAKI’S SYSTEM WITH A FRICTION [PDF]
Vestnik KRAUNC: Fiziko-Matematičeskie Nauki, 2013 The paper presents the results of numerical modeling of phase trajectories of the dynamical system Rikitake. Parameters of system and initial conditions at the case of doubling cascade mode are showen.
I.A. Il’in +2 more
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Open Physics, 2021 We formulated the oscillators with position-dependent finite symmetric decreasing and increasing mass. The classical phase portraits of the systems were studied by analytical approach (He’s frequency formalism).
Rath Biswanath +5 more
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Phase Portraits of Hyperbolic Geometry [PDF]
The Mathematical Intelligencer, 2019 Phase plotting is a useful way of visualising functions on complex space. We reinvent the method in the context of hyperbolic geometry, and we use it to plot functions on various representative surfaces for hyperbolic space, illustrating with direct motions in particular. The reinvention is nontrivial, and we discuss the essential features for ensuring
Scott B. Lindstrom, Paul Vrbik
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Archives of Public Health, 2021 Using publicly available data on the number of new hospitalisations we use a newly developed statistical model to produce a phase portrait to monitor the epidemic allowing for assessing whether or not intervention measures are needed to keep hospital ...
Christel Faes, Niel Hens, Marius Gilbert
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Characterization of a Dual Nonlinear Helmholtz Resonator
Micromachines, 2022 Resonant elements can generate small amounts of energy that make them pertinent for feeding miniaturized accelerometers with the energy needed. Suitable oscillator candidates are Helmholtz resonators, which have been, for a long time, analyzed and ...
Maher O. Al-Turk +2 more
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