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Positive Cubature Compression and Optimal Hyperinterpolation Stability on a Conic Surface

An, Congpei et al.
arXiv (All) · Papers
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classical-analysis-and-odes
We study the computational cost and stability of positive cubature and hyperinterpolation on a truncated conic surface with a Jacobi-type weight. A classical quadratic disk-to-cone map is used in a basis-free form as a measure-preserving $\mathbb Z_2$ quotient. It identifies the full degree-$m$ coni
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