Geodesic
An Interpolatory Rational Approximation
Canadian mathematical bulletin, Tome 21 (1978) no. 2, pp. 197-200

Voir la notice de l'article provenant de la source Cambridge University Press

The classical Hermite-Fejér interpolation process is a positive linear mapping from C[-1, 1] into the space of polynomials of degree ≤2n-1. If Tn(x) denotes the Tchebisheff polynomial of degree n and xk = xnk (k = 1,2, ..., n) its roots, then for any given f∈ C[-1, 1] the Hermite-Fejér image Hnf of f is defined by 1.1 
Meir, A. An Interpolatory Rational Approximation. Canadian mathematical bulletin, Tome 21 (1978) no. 2, pp. 197-200. doi: 10.4153/CMB-1978-033-6
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