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arXiv · 2012.03425

Multipatch Discontinuous Galerkin IGA for the Biharmonic Problem On Surfaces

Stephen E. Moore
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Abstract

We present the analysis of interior penalty discontinuous Galerkin Isogeometric Analysis (dGIGA) for the biharmonic problem on orientable surfaces $\Omega \subset \mathbb{R}^3.$ Here, we consider a surface consisting of several non-overlapping patches as typical in multipatch dGIGA. Due to the non-overlapping nature of the patches, we construct NURBS approximation spaces which are discontinuous across the patch interfaces via a penalty scheme. By an appropriate discrete norm, we present \textit{a priori} error estimates for the non-symmetric, symmetric and semi-symmetric interior penalty methods. Finally, we confirm our theoritical results with numerical experiments.

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Stephen E. Moore. 2020-12-07. Multipatch Discontinuous Galerkin IGA for the Biharmonic Problem On Surfaces. https://arxiv.org/abs/2012.03425

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