Unimodular polynomial matrix

In mathematics, a unimodular polynomial matrix is a square polynomial matrix whose inverse exists and is itself a polynomial matrix. Equivalently, a polynomial matrix A is unimodular if its determinant det(A) is a nonzero constant.^[1]

References

1. Horn, Roger A.; Johnson, Charles R. (1985), Matrix Analysis, Cambridge University Press, p. 14, ISBN 978-0-521-38632-6

Other sources & external links

• Antsaklis, Panos J.; Michel, Anthony N. (2006), A Linear Systems Primer, p. 273, ISBN 978-0-8176-4460-4
• [1] Polynomial matrix glossary at Polyx (A matlab toolbox)