1975年，杨乐、张广厚发表了关于值分布理论的研究。

In 1975, Yang Le and Zhang Guanghou published their result on the value distribution theory.

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理论分析和仿真实验表明，GBBV模型保留了BBV模型的许多特征，节点度、节点权重和边权值等都服从幂律分布。

Theoretical analysis and numerical simulations show that the GBBV model retains many properties of the BBV model, such as power-law distributions of node degree, node strength and edge weight.

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利用随机矩阵理论我们发现相对收益的关联矩阵的特征值分布也具有幂律的特征。

By using random matrix theory we find that the distribution of eigenvalues of correlation matrix of relative return also follows a power-law.

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