On Topologically Controlled Model Reduction for Discrete-Time Systems

Abstract

In this document the author proves that several problems in data-driven numerical approximation of dynamical systems in ${\mathbb{C}}^n$, can be reduced to the computation of a family of constrained matrix representations of elements of the group algebra $\mathbb{C}[\mathbb{Z}/m]$ in ${\mathbb{C}}^{n\times n}$, factoring through the commutative algebra $Circ(m)$ of circulant matrices in ${\mathbb{C}}^{m\times m}$, for some integers $m\le n$. The solvability of the previously described matrix representation problems is studied. Some connections of the aforementioned results, with numerical analysis of dynamical systems, are outlined, a prorotypical algorithm for the computation of the matrix representations, and some numerical implementations of the algorithm, will be presented.

References in corpus (1)

• On Uniform Connectivity of Algebraic Matrix Sets