Block Kronecker linearizations of matrix polynomials and their backward errors

FM Dopico, PW Lawrence, J Pérez, PV Dooren - Numerische Mathematik, 2018 - Springer
We introduce a new family of strong linearizations of matrix polynomials—which we call
“block Kronecker pencils”—and perform a backward stability analysis of complete …

Multiview Fully Interpretable TSK Fuzzy Classifier Enhanced by Multiview Accompanying GMMs

E Zhou, F Chung, S Wang - IEEE Transactions on Fuzzy …, 2024 - ieeexplore.ieee.org
While interpretable multiview classification is accomplished by recently developed fully
interpretable Takagi-Sugeno-Kang (TSK) classifier FIMG-TSK along each view, this study …

[HTML][HTML] Companion matrix patterns

B Eastman, IJ Kim, BL Shader… - Linear Algebra and its …, 2014 - Elsevier
Companion matrices, especially the Frobenius companion matrices, are used in algorithms
for finding roots of polynomials and are also used to find bounds on eigenvalues of matrices …

Backward stability of polynomial root-finding using Fiedler companion matrices

F De Terán, FM Dopico, J Pérez - IMA Journal of Numerical …, 2016 - academic.oup.com
Computing roots of scalar polynomials as the eigenvalues of Frobenius companion matrices
using backward stable eigenvalue algorithms is a classical approach. The introduction of …

[HTML][HTML] Polynomial zigzag matrices, dual minimal bases, and the realization of completely singular polynomials

F De Terán, FM Dopico, DS Mackey… - Linear Algebra and its …, 2016 - Elsevier
Minimal bases of rational vector spaces are a well-known and important tool in systems
theory. If minimal bases for two subspaces of rational n-space are displayed as the rows of …

[HTML][HTML] Linearizations of matrix polynomials in Bernstein bases

DS Mackey, V Perović - Linear Algebra and its Applications, 2016 - Elsevier
We discuss matrix polynomials expressed in a Bernstein basis, and the associated
polynomial eigenvalue problems. Using Möbius transformations of matrix polynomials, large …

[HTML][HTML] New bounds for roots of polynomials based on Fiedler companion matrices

F De Terán, FM Dopico, J Pérez - Linear Algebra and its Applications, 2014 - Elsevier
Several matrix norms of the classical Frobenius companion matrices of a monic polynomial
p (z) have been used in the literature to obtain simple lower and upper bounds on the …

Factoring block Fiedler companion matrices

GMD Corso, F Poloni, L Robol, R Vandebril - Structured Matrices in …, 2019 - Springer
When Fiedler published his “A note on Companion matrices” in 2003 on Linear Algebra and
its Applications, he could not have foreseen the significance of this elegant factorization of a …

Pentadiagonal companion matrices

B Eastman, KN Vander Meulen - Special Matrices, 2016 - degruyter.com
The class of sparse companion matrices was recently characterized in terms of unit
Hessenberg matrices. We determine which sparse companion matrices have the lowest …

[HTML][HTML] Linearizations of matrix polynomials in Newton bases

V Perović, DS Mackey - Linear Algebra and its Applications, 2018 - Elsevier
We discuss matrix polynomials expressed in a Newton basis, and the associated polynomial
eigenvalue problems. Properties of the generalized ansatz spaces associated with such …