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- W4297567096 abstract "Isogeometric analysis allows to define shape functions of global $C^{1}$ continuity (or of higher continuity) over multi-patch geometries. The construction of such $C^{1}$-smooth isogeometric functions is a non-trivial task and requires particular multi-patch parameterizations, so-called analysis-suitable $G^{1}$ (in short, AS-$G^{1}$) parameterizations, to ensure that the resulting $C^{1}$ isogeometric spaces possess optimal approximation properties, cf. [7]. In this work, we show through examples that it is possible to construct AS-$G^{1}$ multi-patch parameterizations of planar domains, given their boundary. More precisely, given a generic multi-patch geometry, we generate an AS-$G^{1}$ multi-patch parameterization possessing the same boundary, the same vertices and the same first derivatives at the vertices, and which is as close as possible to this initial geometry. Our algorithm is based on a quadratic optimization problem with linear side constraints. Numerical tests also confirm that $C^{1}$ isogeometric spaces over AS-$G^{1}$ multi-patch parameterized domains converge optimally under mesh refinement, while for generic parameterizations the convergence order is severely reduced." @default.
- W4297567096 created "2022-09-29" @default.
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- W4297567096 date "2017-06-10" @default.
- W4297567096 modified "2023-09-25" @default.
- W4297567096 title "Construction of analysis-suitable $G^1$ planar multi-patch parameterizations" @default.
- W4297567096 doi "https://doi.org/10.48550/arxiv.1706.03264" @default.
- W4297567096 hasPublicationYear "2017" @default.
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