Fiedler companion linearizations and the recovery of minimal indices

F De Terán, FM Dopico, DS Mackey - SIAM journal on matrix analysis and …, 2010 - SIAM
A standard way of dealing with a matrix polynomial P(λ) is to convert it into an equivalent
matrix pencil—a process known as linearization. For any regular matrix polynomial, a new …

Linearizations of singular matrix polynomials and the recovery of minimal indices

F De Teran, F Dopico, D Mackey - The Electronic Journal of …, 2009 - journals.uwyo.edu
Linearizations of singular matrix polynomials and the recovery of minimal indices Page 1 ELA
LINEARIZATIONS OF SINGULAR MATRIX POLYNOMIALS AND THE RECOVERY OF MINIMAL …

Eigenvectors and minimal bases for some families of Fiedler-like linearizations

MI Bueno, F De Terán - Linear and Multilinear Algebra, 2014 - Taylor & Francis
In this paper, we obtain formulas for the left and right eigenvectors and minimal bases of
some families of Fiedler-like linearizations of square matrix polynomials. In particular, for the …

Algorithm for computing μ-bases of univariate polynomials

H Hong, Z Hough, IA Kogan - Journal of Symbolic Computation, 2017 - Elsevier
We present a new algorithm for computing a μ-basis of the syzygy module of n polynomials
in one variable over an arbitrary field K. The algorithm is conceptually different from the …

On computing nullspace bases—a fault detection perspective

A Varga - IFAC Proceedings Volumes, 2008 - Elsevier
We discuss computationally efficient and numerically reliable algorithms to compute minimal
proper nullspace bases of a rational or polynomial matrix. The underlying main …

Equi-affine minimal-degree moving frames for polynomial curves

H Hong, IA Kogan - arXiv preprint arXiv:2402.06610, 2024 - arxiv.org
We develop a theory and an algorithm for constructing minimal-degree polynomial moving
frames for polynomial curves in an affine space. The algorithm is equivariant under volume …

[HTML][HTML] On computing root polynomials and minimal bases of matrix pencils

V Noferini, P Van Dooren - Linear Algebra and its Applications, 2023 - Elsevier
We revisit the notion of root polynomials, thoroughly studied in (Dopico and Noferini, 2020
[9]) for general polynomial matrices, and show how they can efficiently be computed in the …

[HTML][HTML] Block minimal bases ℓ-ifications of matrix polynomials

FM Dopico, J Pérez, P Van Dooren - Linear Algebra and its Applications, 2019 - Elsevier
The standard way of solving a polynomial eigenvalue problem associated with a matrix
polynomial starts by embedding the matrix coefficients of the polynomial into a matrix pencil …

An improved Toeplitz algorithm for polynomial matrix null-space computation

JCZ Anaya, D Henrion - Applied Mathematics and Computation, 2009 - Elsevier
In this paper, we present an improved algorithm to compute the minimal null-space basis of
polynomial matrices, a problem which has many applications in control and systems theory …

[HTML][HTML] Robustness and perturbations of minimal bases

P Van Dooren, FM Dopico - Linear Algebra and its Applications, 2018 - Elsevier
Polynomial minimal bases of rational vector subspaces are a classical concept that plays an
important role in control theory, linear systems theory, and coding theory. It is a common …