Abstract
A standard construction in approximation theory is mesh refinement. For a simplicial or polyhedral mesh Δ⊆ Rk, we study the subdivision Δ′ obtained by subdividing a maximal cell of Δ. We give sufficient conditions for the module of splines on Δ′ to split as the direct sum of splines on Δ and splines on the subdivided cell. As a consequence, we obtain dimension formulas and explicit bases for several commonly used subdivisions and their multivariate generalizations.
Original language | English (US) |
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Pages (from-to) | 237-247 |
Number of pages | 11 |
Journal | Constructive Approximation |
Volume | 47 |
Issue number | 2 |
DOIs | |
State | Published - Apr 1 2018 |
Keywords
- Dimension formula
- Spline
- Subdivision
ASJC Scopus subject areas
- Analysis
- General Mathematics
- Computational Mathematics