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math.PR2022
Extreme eigenvalues of Log-concave Ensemble
Zhigang Bao, Xiaocong Xu
In this paper, we consider the log-concave ensemble of random matrices, a class of covariance-type matrices with isotropic log-concave -columns. A main example is the cov…
math.ST2022★ 3 cited
Spectral Statistics of Sample Block Correlation Matrices
Zhigang Bao, Jiang Hu, Xiaocong Xu +1
A fundamental concept in multivariate statistics, sample correlation matrix, is often used to infer the correlation/dependence structure among random variables, when the population…