Matrix Polynomial

A polynomial with matrix coefficients. An th order matrix polynomial in a variable  is given by

where  are  square matrices.

REFERENCES:

Edelman, A. and Kostlan, E. "How Many Zeros of a Random Polynomial are Real?" Bull. Amer. Math. Soc. 32, 1-37, 1995.

Faddeeva, V. N. Computational Methods of Linear Algebra. New York: Dover, p. 13, 1958.