Sharp lower bounds for the dimension of linearizations of matrix polynomials.
Smith forms of palindromic matrix polynomials.
Smith normal form of a matrix of generalized polynomials with rational exponents
It is proved that generalized polynomials with rational exponents over a commutative field form an elementary divisor ring; an algorithm for computing the Smith normal form is derived and implemented.
Some factorizations of matrix functions in several variables
We establish some criteria for a nonsingular square matrix depending on several parameters to be represented in the form of a matrix product of factors which depend on the single parameters.
Some Global Properties of Matrices of Functions of One Variable.
Some matrix inequalities of London type
Spectrum localization of regular matrix polynomials and functions.