R3MG: R-tree based agglomeration of polytopal grids with applications to multilevel methods
M Feder, A Cangiani, L Heltai - arXiv preprint arXiv:2404.18505, 2024 - arxiv.org
We present a novel approach to perform agglomeration of polygonal and polyhedral grids
based on spatial indices. Agglomeration strategies are a key ingredient in polytopal …
based on spatial indices. Agglomeration strategies are a key ingredient in polytopal …