Large-sample approximations for variance-covariance matrices of high-dimensional time series
نویسندگان
چکیده
منابع مشابه
Exact Separation of Eigenvalues of Large Dimensional Sample Covariance Matrices
Let B n = (1/N)T 1/2 n is a Hermitian square root of the nonnegative definite Hermitian matrix T n. It is shown in Bai and Silverstein (1998) that, under certain conditions on the eigenvalues of T n , with probability one no eigenvalues lie in any interval which is outside the support of the limiting empirical distribution (known to exist) for all large n. For these n the interval corresponds t...
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ژورنال
عنوان ژورنال: Bernoulli
سال: 2017
ISSN: 1350-7265
DOI: 10.3150/16-bej811