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20232026
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math.NA2026

Avoiding stabilization terms in virtual elements for eigenvalue problems: The Reduced Basis Virtual Element Method

Silvia Bertoluzza, Fabio Credali, Francesca Gardini

We present the novel Reduced Basis Virtual Element Method (rbVEM) for solving the Laplace eigenvalue problem. This approach is based on the lowest-order virtual element method and…

math.NA2025

The Reduced Basis Multigrid scheme for the Virtual Element Method

Paola F. Antonietti, Silvia Bertoluzza, Fabio Credali

We present a non-nested W-cycle multigrid scheme for the lowest order Virtual Element Method on polygonal meshes. To avoid the implicit definition of the Virtual Element space, whi…

math.NA2024

A stabilized three fields formulation for Discrete Fracture Networks

Stefano Berrone, Silvia Bertoluzza, Stefano Scialò

We propose a hybridized domain decomposition formulation of the discrete fracture network model, allowing for independent discretization of the individual fractures. A natural norm…

math.NA2023

Localization of trace norms in two and three dimensions

Silvia Bertoluzza

We extend a localization result for the norm by B. Faermann to a wider class of subspaces of , and we prove an analogous result for the norm, $Γ…

math.NA2023

An abstract framework for heterogeneous coupling: stability, approximation and preconditioning

Silvia Bertoluzza, Erik Burman

We consider heterogeneous coupling problems on an abstract level, establishing fundamental principles of domain decomposition agnostic to the solvers of the local subproblems. Intr…