V. Noferini

activity

20102025

most citedAlgebraic arctic curves in the domain-wall six-vertex model

16 citations · 16 across the 7 of their papers we have counts for

collaborators

Showing math.NAShow all

4 papers · 1 filter

math.NA2025

Finding the nearest $Ω$ -stable pencil with Riemannian optimization

Vanni Noferini, Lauri Nyman

This paper considers the problem of finding the nearest $Ω$ -stable pencil to a given square pencil $A + x B \in C^{n \times n}$ , where a pencil is called $Ω$ -stable if it is…

math.NA2022

Revisiting the matrix polynomial greatest common divisor

Vanni Noferini, Paul Van Dooren

In this paper we revisit the greatest common right divisor (GCRD) extraction from a set of polynomial matrices $P_i(λ)\in \F[\la]^{m_i\times n}$, $i = 1, \dots, k$ with coefficients i…

math.NA2020

Nearest $Ω$ -stable matrix via Riemannian optimization

Vanni Noferini, Federico Poloni

We study the problem of finding the nearest $Ω$ -stable matrix to a certain matrix $A$ , i.e., the nearest matrix with all its eigenvalues in a prescribed closed set $Ω$ . Distances a…

math.NA2019

Wilkinson's bus: Weak condition numbers, with an application to singular polynomial eigenproblems

Martin Lotz, Vanni Noferini

We propose a new approach to the theory of conditioning for numerical analysis problems for which both classical and stochastic perturbation theory fail to predict the observed acc…

Finding the nearest Ω-stable pencil with Riemannian optimization

Revisiting the matrix polynomial greatest common divisor

Nearest Ω-stable matrix via Riemannian optimization

Wilkinson's bus: Weak condition numbers, with an application to singular polynomial eigenproblems

Finding the nearest $Ω$ -stable pencil with Riemannian optimization

Nearest $Ω$ -stable matrix via Riemannian optimization