The Reduced Basis Multigrid scheme for the Virtual Element Method
Numerical Analysis
2026-01-14 v3 Numerical Analysis
Abstract
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, which poses several issues in the computation of intergrid operators that underpin multigrid methods, the proposed scheme uses a fully-conforming auxiliary space constructed by cheaply computing the virtual basis functions via the reduced basis method.
Cite
@article{arxiv.2511.22219,
title = {The Reduced Basis Multigrid scheme for the Virtual Element Method},
author = {Paola F. Antonietti and Silvia Bertoluzza and Fabio Credali},
journal= {arXiv preprint arXiv:2511.22219},
year = {2026}
}
Comments
Accepted for publication in "Domain Decomposition Methods in Science and Engineering XXIX", Springer. 8 pages, 1 figure, 2 tables, 2 algorithms