On the multi-level splitting of finite element spaces
Numerische Mathematik
Dimensions of spline spaces over T-meshes
Journal of Computational and Applied Mathematics
Polynomial splines over hierarchical T-meshes
Graphical Models
Adaptive isogeometric analysis using rational PHT-splines
Computer-Aided Design
Parallel and adaptive surface reconstruction based on implicit PHT-splines
Computer Aided Geometric Design
Dimension of spline spaces with highest order smoothness over hierarchical T-meshes
Computer Aided Geometric Design
Dimensions and bases of hierarchical tensor-product splines
Journal of Computational and Applied Mathematics
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The prospect of applying spline spaces over T-subdivisions to adaptive isogeometric analysis is an exciting one. One major issue with spline spaces over T-subdivisions is in providing proper bases (shape functions) for finite element analysis. In this paper, we propose a method for the construction of hierarchical bases of a spline space with highest order smoothness over a consistent hierarchical T-subdivision. Our method is induced by the surjection condition, and this set of basis functions is hierarchically adaptive. We also present a concrete set of non-negative hierarchical bases over a T-subdivision and apply them in adaptive finite element analysis.