Geodesic
Оn optimal choice of interpolation spline on triangular net
Izvestiya of Saratov University. Mathematics. Mechanics. Informatics, Tome 5 (2005) no. 1-2, pp. 26-33 
Yu. V. Kupriyanova; S. F. Lukomskiy. Оn optimal choice of interpolation spline on triangular net. Izvestiya of Saratov University. Mathematics. Mechanics. Informatics, Tome 5 (2005) no. 1-2, pp. 26-33. http://geodesic.mathdoc.fr/item/ISU_2005_5_1-2_a2/
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Voir la notice de l'article provenant de la source Math-Net.Ru

ln this paper we find а Hermite Spline оп atriangle for the approximation error of its derivatives with respect to а side of this triangle are inversely proportional to length of this side.

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