Lower bounds on the smallest eigenvalue of a sample covariance matrix.
Lower bounds on the smallest eigenvalue of a sample covariance matrix.
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DOI:
10.1214/ecp.v19-3807
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发表时间:
2014-06
影响因子:
0.5
通讯作者:
P. Yaskov
中科院分区:
文献类型:
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作者:
P. Yaskov
We provide tight lower bounds on the smallest eigenvalue of a sample covariance matrix of a centred isotropic random vector under weak or no assumptions on its components.