Rational Solutions of Matrix Difference Equations: The Problem of Equivalence and Factorization.

Moulay A. Barkatou Rational Solutions of Matrix Difference Equations: The Problem of Equivalence and Factorization. 277-282 1999 conf/issac/1999 ISSAC http://doi.acm.org/10.1145/309831.309956 db/conf/issac/issac99.html#Barkatou99