Eigenvalue spectra of large correlated random matrices.

Eigenvalue spectra of large correlated random matrices.
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大型相关随机矩阵的特征值谱。

DOI:
10.1103/physreve.94.050101
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发表时间:
2016
期刊:
Physical review. E
影响因子:
--
通讯作者:
Sharpee,TatyanaO
Sharpee,TatyanaO
中科院分区:
--
文献类型:
--
作者:
Kuczala,Alexander;Sharpee,TatyanaO

文献摘要

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利用图解方法,我们导出了一组描述大型相关非对称随机矩阵的特征值分布的自洽方程。矩阵元素可以具有不同的方差,并且彼此相关。数值模拟结果证实了分析结果的正确性。这些结果对神经和其他生物网络的动力学有影响,在这些网络中,可塑性导致网络内连接强度的关联。我们发现,相关性的存在会对网络稳定性产生重大影响。
Using the diagrammatic method, we derive a set of self-consistent equations that describe eigenvalue distributions of large correlated asymmetric random matrices. The matrix elements can have different variances and be correlated with each other. The analytical results are confirmed by numerical simulations. The results have implications for the dynamics of neural and other biological networks where plasticity induces correlations in the connection strengths within the network. We find that the presence of correlations can have a major impact on network stability.