Geodesic
On numerical approximation of differential polynomials
Izvestiya of Saratov University. Mathematics. Mechanics. Informatics, Tome 7 (2007) no. 2, pp. 39-43.

Voir la notice de l'article provenant de la source Math-Net.Ru

A numerical approximation formula was devised for differential operators of a special form. An absolute approximation error value was indicated. It was shown that the mentioned approximation is accurate for polynomials. 
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A. V. Fryantsev. On numerical approximation of differential polynomials. Izvestiya of Saratov University. Mathematics. Mechanics. Informatics, Tome 7 (2007) no. 2, pp. 39-43. http://geodesic.mathdoc.fr/item/ISU_2007_7_2_a8/

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