The TRUNC element in any dimension and application to a modified Poisson equation

Fuente: arXiv
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Auteurs principaux: Li, Hongliang, Ming, Pingbing, Zhou, Yinghong
Format: Preprint
Publié: 2024
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author Li, Hongliang
Ming, Pingbing
Zhou, Yinghong
author_facet Li, Hongliang
Ming, Pingbing
Zhou, Yinghong
contents We introduce a novel TRUNC finite element in n dimensions, encompassing the traditional TRUNC triangle as a particular instance. By establishing the weak continuity identity, we identify it as crucial for error estimate. This element is utilized to approximate a modified Poisson equation defined on a convex polytope, originating from the nonlocal electrostatics model. We have substantiated a uniform error estimate and conducted numerical tests on both the smooth solution and the solution with a sharp boundary layer, which align with the theoretical predictions.
format Preprint
id arxiv_https___arxiv_org_abs_2409_00748
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle The TRUNC element in any dimension and application to a modified Poisson equation
Li, Hongliang
Ming, Pingbing
Zhou, Yinghong
Numerical Analysis
We introduce a novel TRUNC finite element in n dimensions, encompassing the traditional TRUNC triangle as a particular instance. By establishing the weak continuity identity, we identify it as crucial for error estimate. This element is utilized to approximate a modified Poisson equation defined on a convex polytope, originating from the nonlocal electrostatics model. We have substantiated a uniform error estimate and conducted numerical tests on both the smooth solution and the solution with a sharp boundary layer, which align with the theoretical predictions.
title The TRUNC element in any dimension and application to a modified Poisson equation
topic Numerical Analysis
url https://arxiv.org/abs/2409.00748