{ "id": "2012.03425", "version": "v1", "published": "2020-12-07T02:47:11.000Z", "updated": "2020-12-07T02:47:11.000Z", "title": "Multipatch Discontinuous Galerkin IGA for the Biharmonic Problem On Surfaces", "authors": [ "Stephen E. Moore" ], "comment": "20 pages; 7 figures", "categories": [ "math.NA", "cs.NA" ], "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.", "revisions": [ { "version": "v1", "updated": "2020-12-07T02:47:11.000Z" } ], "analyses": { "subjects": [ "65N30", "65N22", "65N15", "G.1.0", "G.1.3", "G.1.8" ], "keywords": [ "multipatch discontinuous galerkin iga", "biharmonic problem", "penalty discontinuous galerkin isogeometric analysis", "interior penalty discontinuous galerkin isogeometric", "semi-symmetric interior penalty methods" ], "note": { "typesetting": "TeX", "pages": 20, "language": "en", "license": "arXiv", "status": "editable" } } }