Published online by Cambridge University Press: 24 October 2008
Bartlett and Rajalakshman (3) have derived two types of large sample goodness of fit tests for the hypothesis that a multivariate (or vector) time series {X(t)}, t = 0, ± 1, ± 2, …, is generated by a linear autoregressive process. This may be defined as the stationary solution of an equation of the form
where the Ai are square matrices such that the roots of the determinantal equation ‖ zp + A1zp−1 + … + Ap ‖ = 0 have moduli less than unity, and {U(t)} is a sequence of independent random vector variables with a common distribution.