Dahlhaus, R.; Pötscher, B. M. - In: Journal of Multivariate Analysis 30 (1989) 2, pp. 241-244
The consistency proof for the (Gaussian quasi) maximum likelihood estimator in multivariable ARMA models as given in Dunsmuir and Hannan (1976, Adv, in Appl. Probab. 8, 339-364) rests on a certain property of the underlying parameter space, called B6 in their paper. It is not known whether the...