{ "id": "2212.01720", "version": "v1", "published": "2022-12-04T01:42:52.000Z", "updated": "2022-12-04T01:42:52.000Z", "title": "Stabilization-Free Virtual Element Methods", "authors": [ "Chunyu Chen", "Xuehai Huang", "Huayi Wei" ], "comment": "20 pages", "categories": [ "math.NA", "cs.NA" ], "abstract": "Stabilization-free virtual element methods in arbitrary degree of polynomial are developed for second order elliptic problems, including a nonconforming virtual element method in arbitrary dimension and a conforming virtual element method in two dimensions. The key is to construct local $H(\\textrm{div})$-conforming macro finite element spaces such that the associated $L^2$ projection of the gradient of virtual element functions is computable, and the $L^2$ projector has a uniform lower bound on the gradient of virtual element function spaces in $L^2$ norm. Optimal error estimates are derived for these stabilization-free virtual element methods. Numerical results are provided to verify the convergence rates.", "revisions": [ { "version": "v1", "updated": "2022-12-04T01:42:52.000Z" } ], "analyses": { "subjects": [ "65N12", "65N22", "65N30" ], "keywords": [ "stabilization-free virtual element methods", "second order elliptic problems", "virtual element function spaces", "conforming macro finite element spaces", "nonconforming virtual element method" ], "note": { "typesetting": "TeX", "pages": 20, "language": "en", "license": "arXiv", "status": "editable" } } }