Geodesic
Approximation by poised sets of nodes
Proceedings of the Yerevan State University. Physical and mathematical sciences, no. 1 (2012), pp. 60-62.

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In the present paper it has been shown that nodes of any finite set $X\subset\mathbb{R}^d$ can be made independent by arbitrarily small perturbation, in other words, the set $X$ can be approximated by sets of independent nodes. In the case of $\#X=\mathrm{dim}\prod^d_n$ the set $X$ can be approximated by sets of poised nodes.
Keywords: independent points, poised sets.
Mots-clés : Lagrange interpolation 
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G. S. Avagyan; L. R. Rafaelyan. Approximation by poised sets of nodes. Proceedings of the Yerevan State University. Physical and mathematical sciences, no. 1 (2012), pp. 60-62. http://geodesic.mathdoc.fr/item/UZERU_2012_1_a10/

[1] I. P. Mysovskikh, Interpolation Cubature Formulas, Nauka, M., 1981, 33–-34 (in Russian) | MR