A quadratic finite element wavelet Riesz basis
classification
🧮 math.NA
cs.NA
keywords
basiselementfinitequadraticwaveletwaveletscombinationcomputed
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In this paper, continuous piecewise quadratic finite element wavelets are constructed on general polygons in $\mathbb{R}^2$. The wavelets are stable in $H^s$ for $|s|<\frac{3}{2}$ and have two vanishing moments. Each wavelet is a linear combination of 11 or 13 nodal basis functions. Numerically computed condition numbers for $s \in \{-1,0,1\}$ are provided for the unit square.
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