Average Distance of Self-Similar Fractal Trees

Average Distance of Self-Similar Fractal Trees
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自相似分形树的平均距离

DOI:
10.1142/s0218348x18500160
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发表时间:
2018-02
影响因子:
4.7
通讯作者:
Xi Lifeng
Xi Lifeng
中科院分区:
数学2区
文献类型:
--
作者:
Li Tingting;Jiang Kan;Xi Lifeng

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In this paper, we introduce a method which can generate a family of growing symmetrical tree networks. The networks are constructed by replacing each edge with a reduced-scale of the initial graph. Repeating this procedure, we obtain the fractal networks. In this paper, we define the average geodesic distance of fractal tree in terms of some integral, and calculate its accurate value. We find that the limit of the average geodesic distance of the finite networks tends to the average geodesic distance of the fractal tree. This result generalizes the paper [Z. Zhang, S. Zhou, L. Chen, M. Yin and J. Guan, Exact solution of mean geodesic distance for Vicsek fractals, J. Phys. A, Math. Gen. 41(48) (2008) 7199–7200] for which the mean geodesic distance of Vicsek fractals was considered.
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