| Local Lyapunov Exponent for the Bak-Sneppen Model |
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| 作者姓名： | 马科 杨纯斌 蔡勖 |
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| 作者单位： | InstituteofParticlePhysics,HuazhongNormalUniversity,Wuhan430079 |
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| 摘 要： | The chaotic Property of the Bak-Sneppen model is studied from the local Lyapunov exponent in the same way as for dynamical nonlinear systems.Similar behaviour is found for the one- and two-dimensional Bak-Sneppen models.The Lyapunov exponents for the two cases have the same order of magnitude and both decrease at early evolution but show a slow increasing saturation at late evolution.
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| 关 键 词： | 混沌性质 非线性动力学系统 自组织临界性 SOC模型 BS模型 格子尺寸 饱和度 |
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