N. Guglielmi

activity

20112023

most citedDelay differential equations for the spatially-resolved simulation of epidemics with specific application to COVID-19

57 citations · 121 across the 25 of their papers we have counts for

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Showing 2023Show all

3 papers · 1 filter

math.DS2023★ 1 cited

Nonuniqueness phenomena in discontinuous dynamical systems and their regularizations

Alessia andò, Roderick Edwards, Nicola Guglielmi

In a recent paper by Guglielmi and Hairer (SIADS 2015), an analysis in the $ε \to 0$ limit was proposed of regularized discontinuous ODEs in codimension-2 switching domain…

math.NA2023

A low rank ODE for spectral clustering stability

Nicola Guglielmi, Stefano Sicilia

Spectral clustering is a well-known technique which identifies $k$ clusters in an undirected graph with weight matrix $W \in R^{n \times n}$ by exploiting its graph Laplacian…

math.NA2023

Approximating the closest structured singular matrix polynomial

Miryam Gnazzo, Nicola Guglielmi

Consider a matrix polynomial $P (λ) = A_{0} + λ A_{1} + \dots + λ^{d} A_{d}$ , with $A_{0}, \dots, A_{d}$ complex (or real) matrices with a certain structure. In this paper we discus…