Geodesic
On an approximation of Pfaff's equations
Matematičeskoe obrazovanie, Tome 88 (2018) no. 4, pp. 30-37.

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

An approximation of the Pfaff's equations based on the least square method is suggested. The approximation is the full differentials equation.
Mots-clés : Pfaff’s equation
Keywords: equation in total differentials, Pfaff’s equation approximation, least squares method. 
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V. V. Ivlev; E. M. Arkhipova. On an approximation of Pfaff's equations. Matematičeskoe obrazovanie, Tome 88 (2018) no. 4, pp. 30-37. http://geodesic.mathdoc.fr/item/MO_2018_88_4_a4/

[1] Stepanov V.V., Kurs differentsialnykh uravnenii, Nauka, M., 1958