Hannan, E. J.; Wahlberg, B. - In: Journal of Multivariate Analysis 31 (1989) 1, pp. 127-135
Given a p-dimensional spectral density [phi]([omega])=cI0, [for all][omega][set membership, variant][0,2[pi]] such that [phi]r([omega]) [set membership, variant] Lip* ([alpha]), with covariance block-Toeplitz matrix [Gamma]n of dimension np - np, we show that b=(r+[alpha])/(1+r+[alpha]),...