Spectral norm of random large dimensional noncentral Toeplitz and Hankel matrices

Arup Bose (Indian Statistical Institute)
Arnab Sen (University of California, Berkeley)

Abstract


Suppose $s_n$ is the spectral norm of either the Toeplitz or the Hankel matrix whose entries come from an i.i.d. sequence of random variables with positive mean $\mu$ and finite fourth moment. We show that $n^{-1/2}(s_n-n\mu)$ converges to the normal distribution in either case. This behaviour is in contrast to the known result for the Wigner matrices where $s_n-n\mu$ is itself asymptotically normal.

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Pages: 21-27

Publication Date: February 13, 2007

DOI: 10.1214/ECP.v12-1243

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