quasi-periodic


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quasi-periodic

adj
1. (Geological Science) almost periodic
2. (Mathematics) maths (of a function) having an increase in functional value based on the increase of the variable
3. (General Physics) physics (of a motion) having two periods without a common duration
4. (Minerals) crystallog maths having an irregularly occurring pattern
5. (Mathematics) crystallog maths having an irregularly occurring pattern
References in periodicals archive ?
On Saturn, it's known as Quasi-Periodic Oscillation (QPO) and Quasi-Quadrennial Oscillation (QQO) on Jupiter.
Cong, Liu, and Yuan prove the long-time stability of KAM tori (thus quasi-periodic solutions) of a nonlinear Schr|dinger equation subject to Dirichlet boundary conditions u(t,0) = u(t,pi) where one element in the equation is a real Fourier multiplier.
In 2014, Dheeraj Pasham (NASA Goddard) and colleagues weighed a potential IMBH using quasi-periodic oscillations (QPOs), cyclic blips in a black hole's X-ray signal that astronomers suspect are related to the object's mass.
The above bifurcation diagrams show that breathing crack plate has complex nonlinear phenomenon: quasi-periodic motion, bifurcation motion, and chaotic motion.
In a dynamic region [SIGMA] which contains n x n cells, the whole domain may consist of the periodic, quasi-periodic, or chaotic state due to the analytic solution.
Relying on my recent results on quantitative stochastic homogenization, I have made a sharp numerical analysis of these methods, and introduced more efficient variants, so that the three academic examples of periodic, quasi-periodic, and random stationary diffusion coefficients can be dealt with efficiently.
CAP is a quasi-periodic EEG activity characterized by cyclic sequences of cerebral activation (phase A; about 8-15 seconds) followed by periods of deactivation (phase B; about 15-20 seconds) [5-7].
Twenty years after the discovery of neutron stars, quasi-periodic oscillations (QPOs) of X-rays were observed first from white dwarfs and then from neutron stars [13-14].
Beyond these bounds the laser output is subjected to various irregular oscillations, which extend from regular pulsing over quasi-periodic pulsing to chaotic pulsing, where chaotic pulses have both chaotic peak intensities and chaotic pulse intervals.
the quasi-periodic motion of Earth's axis of rotation in space, especially at annual and semi-annual frequencies.
Rezig, "A broad omnidirectional reflection band obtained from deformed Fibonacci quasi-periodic one dimensional photonic crystals," J.
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