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arXiv 1706.07044nlin.CD
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具有角速度的线性限制性四体问题的平衡点和收敛域

Equilibrium points and basins of convergence in the linear restricted four-body problem with angular velocity

Euaggelos E. Zotos

摘要:

利用平面线性限制性四体问题确定了与平衡点有关的牛顿-拉夫逊收敛域。当质量参数$b$以及角速度$ω$的值在预定义的间隔内变化时,监测振动点的位置以及稳定性的参数变化。利用多变量Newton-Raphson迭代格式,揭示了位形$(x,y)$平面上吸引盆所占据的区域.平衡点的吸引域之间的相关性和获得所需的精度所需的相应的迭代次数也示出。我们进行了一个彻底的和系统的数值研究,通过演示如何参数$b$和$ω$影响的形状,几何形状,当然,分形的收敛区域。我们的数值结果强烈表明,这两个参数确实是两个最有影响力的因素,在这个动力系统。

英文摘要:

The planar linear restricted four-body problem is used in order to determine the Newton-Raphson basins of convergence associated with the equilibrium points. The parametric variation of the position as well as of the stability of the libration points is monitored when the values of the mass parameter $b$ as well as of the angular velocity $ω$ vary in predefined intervals. The regions on the configuration $(x,y)$ plane occupied by the basins of attraction are revealed using the multivariate version of the Newton-Raphson iterative scheme. The correlations between the attracting domains of the equilibrium points and the corresponding number of iterations needed for obtaining the desired accuracy are also illustrated. We perform a thorough and systematic numerical investigation by demonstrating how the parameters $b$ and $ω$ influence the shape, the geometry and of course the fractality of the converging regions. Our numerical outcomes strongly indicate that these two parameters are indeed two of the most influential factors in this dynamical system.

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