Murty, Kanuri N.; Fausett, Laurene V.; Wu, Yan Fundamental theory of control of general first-order matrix difference systems. (English) Zbl 1188.93050 Dyn. Contin. Discrete Impuls. Syst., Ser. A, Math. Anal. 13, No. 2, 301-310 (2006). From the text: The authors give the general solution of a discrete-time, linear, time-variant, control system, and study questions related to the controllability, observability, and realizability MSC: 93C55 Discrete-time control/observation systems 93B05 Controllability 93B25 Algebraic methods 93B15 Realizations from input-output data 39A10 Additive difference equations PDFBibTeX XMLCite \textit{K. N. Murty} et al., Dyn. Contin. Discrete Impuls. Syst., Ser. A, Math. Anal. 13, No. 2, 301--310 (2006; Zbl 1188.93050)