57 citations · 121 across the 25 of their papers we have counts for
3 papers · 1 filter
Pseudospectral roaming contour integral methods for convection-diffusion equations
Nicola Guglielmi, Maria López-Fernández, Mattia Manucci
We generalize ideas in the recent literature and develop new ones in order to propose a general class of contour integral methods for linear convection-diffusion PDEs and in partic…
Finding the nearest passive or non-passive system via Hamiltonian eigenvalue optimization
Antonio Fazzi, Nicola Guglielmi, Christian Lubich
We propose and study an algorithm for computing a nearest passive system to a given non-passive linear time-invariant system (with much freedom in the choice of the metric defining…
A gradient system approach for Hankel structured low-rank approximation
Antonio Fazzi, Nicola Guglielmi, Ivan Markovsky
Rank deficient Hankel matrices are at the core of several applications. However, in practice, the coefficients of these matrices are noisy due to e.g. measurements errors and compu…