activity
20242026
collaborators

11 papers

math.NA2026

A space-time sparse-grid method for the wave equation

Matteo Ferrari, Andrea Moiola, Chiara Perinati +1

We develop a fast space-time numerical scheme for approximating solutions to the linear wave equation. The approach is based on the sparse-grid combination technique applied to a c…

math.NA2026

Structure-preserving local discontinuous Galerkin discretization of conformational conversion systems

Paola F. Antonietti, Mattia Corti, Sergio Gómez +1

We investigate a two-state conformational conversion system and introduce a novel structure-preserving numerical scheme that couples a local discontinuous Galerkin space discretiza…

math.NA2026

A Multilevel Monte Carlo Virtual Element Method for Uncertainty Quantification of Elliptic Partial Differential Equations

Paola F. Antonietti, Francesca Bonizzoni, Ilaria Perugia +1

We introduce a Monte Carlo Virtual Element estimator based on Virtual Element discretizations for stochastic elliptic partial differential equations with random diffusion coefficie…

math.NA2026

Stability, convergence, and geometric properties of second-order-in-time space-time discretizations for linear and semilinear wave equations

Matteo Ferrari, Ilaria Perugia, Enrico Zampa

We revisit second-order-in-time space-time discretizations of the linear and semilinear wave equations by establishing precise equivalences with first-order-in-time formulations. F…

math.NA2025

A structure-preserving LDG discretization of the Fisher-Kolmogorov equation for modeling neurodegenerative diseases

Paola F. Antonietti, Mattia Corti, Sergio Gómez +1

This work presents a structure-preserving, high-order, unconditionally stable numerical method for approximating the solution to the Fisher-Kolmogorov equation on polytopic meshes,…

math.NA2025

Intrinsic unconditional stability in space-time isogeometric approximation of the acoustic wave equation in second-order formulation

Matteo Ferrari, Ilaria Perugia

We present a novel space-time isogeometric discretization of the acoustic wave equation in second-order formulation that is intrinsically unconditionally stable. The method relies…