Abstract
Representations of concepts from multivariate statistics are studied using multilinear algebra. Applications are given to the analysis of seasonal multivariate time series.
The first paper concerns a class of permutation matrices which are representations of permutation operators on tensor spaces.
In the second paper, the derivation of moments and cumulants of Hilbert space valued random variables are studied. Relations between moments and cumulants  as vector space elements  are given which generalize wellknown results for scalar random variables. Representations of differentials are discussed and results for differentials of matrix valued functions with matrix arguments are derived. Moments and cumulants of the noncentral Wishart distribution are given.
in the third paper, seasonal multivariate time series are investigated using the concepts described in the first two papers. Estimators of unknown parameters are given and their asymptotic distributions are derived. Test statistics for testing homogeneity in time and independence of subprocesses are given and also their asymptotic distributions.
The first paper concerns a class of permutation matrices which are representations of permutation operators on tensor spaces.
In the second paper, the derivation of moments and cumulants of Hilbert space valued random variables are studied. Relations between moments and cumulants  as vector space elements  are given which generalize wellknown results for scalar random variables. Representations of differentials are discussed and results for differentials of matrix valued functions with matrix arguments are derived. Moments and cumulants of the noncentral Wishart distribution are given.
in the third paper, seasonal multivariate time series are investigated using the concepts described in the first two papers. Estimators of unknown parameters are given and their asymptotic distributions are derived. Test statistics for testing homogeneity in time and independence of subprocesses are given and also their asymptotic distributions.
Original language  English 

Qualification  Doctor 
Awarding Institution 

Supervisors/Advisors 

Award date  1985 Jun 7 
Publisher  
Publication status  Published  1985 Jun 7 
Bibliographical note
Defence detailsDate: 19850607
Time: 10:00
Place: MH:C
External reviewer(s)
Name: Eaton, Morris L
Title: Professor
Affiliation: University of Minnesota, Minneapolis

Subject classification (UKÄ)
 Probability Theory and Statistics