N. Guglielmi

collaborators

2 papers

math.NA2024

Approximating the closest structured singular matrix polynomial

Miryam Gnazzo, Nicola Guglielmi

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

math.DS2024

Nonuniqueness phenomena in discontinuous dynamical systems and their regularizations

Alessia andÃ², 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…