Geodesic
On Extremum Problem for Functions of Many Variables
Matematičeskoe obrazovanie, Tome 32 (2005) no. 1, pp. 93-105.

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

The author suggests an original method of computing high-order determinants which occur in studying extremal points of functions of many variables. 
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     author = {V. V. Ivlev},
     title = {On {Extremum} {Problem} for {Functions} of {Many} {Variables}},
     journal = {Matemati\v{c}eskoe obrazovanie},
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V. V. Ivlev. On Extremum Problem for Functions of Many Variables. Matematičeskoe obrazovanie, Tome 32 (2005) no. 1, pp. 93-105. http://geodesic.mathdoc.fr/item/MO_2005_32_1_a5/