Tracy-Widom law for the extreme eigenvalues of sample correlation matrices

Details Tracy-Widom law for the extreme eigenvalues of sample correlation matrices Tracy-Widom law for the extreme eigenvalues of sample correlation matrices

2011-10-24

arxiv.org/abs/1110.5208v2

Mathematics

Statistics Theory

35 pages, a major revision

Scientific paper

Let the sample correlation matrix be $W=YY^T$, where $Y=(y_{ij})_{p,n}$ with $y_{ij}=x_{ij}/\sqrt{\sum_{j=1}^nx_{ij}^2}$. We assume $\{x_{ij}: 1\leq i\leq p, 1\leq j\leq n\}$ to be a collection of independent symmetric distributed random variables with sub-exponential tails. Moreover, for any $i$, we assume $x_{ij}, 1\leq j\leq n$ to be identically distributed. We assume $0

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