Red–green refinement of simplicial meshes in 𝑑 dimensions

Grande, Jörg

doi:10.1090/mcom/3383

Red–green refinement of simplicial meshes in $d$ dimensions
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Math. Comp. 88 (2019), 751-782

Abstract:

The local red–green mesh refinement of consistent, simplicial meshes in $d$ dimensions is considered. We give a constructive solution to the green closure problem in arbitrary dimension $d$. Suppose that $\mathcal {T}$ is a simplicial mesh and that $R$ is an arbitrary subset of its faces, which is refined with the Coxeter–Freudenthal–Kuhn (red) refinement rule. Green refinements of simplices $S\in \mathcal {T}$ are generated to restore the consistency of the mesh using a particular placing triangulation. No new vertices are created in this process. The green refinements are consistent with the red refinement on $R$, the unrefined mesh regions, and all other neighboring green refinements.

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