期刊
NONLINEAR DYNAMICS
卷 111, 期 11, 页码 10601-10615出版社
SPRINGER
DOI: 10.1007/s11071-023-08365-2
关键词
Wada basin; Basin of attraction; Coexisting attractors; Megastability; Fractal basins
Previous results suggest that some oscillators have a finite number of Wada basins. However, in this study, we discovered that a nonlinear oscillator can possess a countable infinity of connected Wada basins. The basin cell theorem and generalized basin cell theorem were used to investigate the infinite number of coexisting attractors and their Wada basins. These systematic Wada basins exhibit identical basin structures in each periodic X-axis coordinate interval, resulting in a high level of indeterminacy and extreme sensitivity to initial conditions.
Previous results show that some oscillators possess finite number of Wada basins. Here we find that a nonlinear oscillator can possess a countable infinity of Wada basins and these Wada basins are connected. Infinite number of coexisting attractors and their Wada basins are investigated by the basin cell theorem and generalized basin cell theorem. Infinite number of Wada basins are systematic, which identical basins structure can be identified in each periodic X-axis coordinate interval. This type of Wada basin boundary can lead to a high level of indeterminacy and an extreme sensitive dependence on initial condition.
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