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Fractality and the small-world property of generalised (u, v)-flowers
Chaos, Solitons & Fractals ( IF 5.3 ) Pub Date : 2020-05-17 , DOI: 10.1016/j.chaos.2020.109837
Nobutoshi Ikeda

So-called (u, v)-flowers are recursive networks which produce self-similar structures with fractality or the small-world property. This paper generalises (u, v)-flowers by introducing probabilities into the realisations of u and v, which enables the study of intermediate states between small and non-small worlds in fractal networks. We obtain the analytical relation between the diameter of the graph L and the graph size N, LN1/dL, and the degree distribution with a power-law form. We show that the difference between the fractal cluster dc and the fractal box db dimensions reflects different behaviour of the mean path length 〈l〉 and L. There seems to be an apparent contradiction between fractality and the small-world property. However, the small-world property can be reconciled with fractality of the graph by size-dependent fractal dimensions where db shows a size-dependent increase with an upper limit dL. The invariance and equivalence of dc, db and dL are maintained only when both 〈l〉 and L are subject to the same non-small-world behaviour. Our investigation provides useful information for interpreting empirical fractal data and basic tools for studying the various dynamics that occur in networks.



中文翻译:

分形和广义(u,v)-花的小世界性质

所谓的(u,v)花是递归网络,它们产生具有分形或小世界性质的自相似结构。本文通过将概率引入uv的实现中来概括(u,v)-花,这使得能够研究分形网络中小世界与非小世界之间的中间状态。我们获得该曲线图的直径之间的关系的分析大号和图形尺寸Ñ大号ñ1个/d大号以及具有幂律形式的度分布。我们表明,分形簇d c和分形盒d b尺寸之间的差异反映了平均路径长度〈l〉和L的不同行为。在分形性和小世界性质之间似乎存在明显的矛盾。但是,小世界属性可以通过与尺寸有关的分形维数与图的分形相协调,其中d b显示随上限d L的与尺寸有关的增加 。d cd bd L的不变性和等价性仅当< l >和L都经受相同的非小世界行为时,才维护它们。我们的研究为解释经验分形数据提供了有用的信息,并为研究网络中发生的各种动力学提供了基本工具。

更新日期:2020-05-17
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