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The degree-four Lagrange- $\ell^4$ bound conjecture for real simplices
Let $S_d$ be the real $d$ -simplex, let $F_4$ be the set of $N=\binom{d+4}{4}$ points constructed in the paper, and let $\ell_j$ be the associated fundamental Lagrange polynomials.…
openfejer-sets polynomial-interpolation simplex
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The degree-four Lagrange-ℓ4\ell^4ℓ4 bound conjecture for real simplices