Geodesic
Nonnegative basis of a lattice
Diskretnaya Matematika, Tome 26 (2014) no. 3, pp. 127-135.

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

A nonnegative basis of a complete lattice is constructed. The criterion of existence of a nonnegative basis of an arbitrary lattice is proved. The problem of existence of a lattice basis from an arbitrary convex cone is investigated.
Keywords: nonnegative basis of a lattice, integer lattice, convex cone. 
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     author = {I. V. Cherednik},
     title = {Nonnegative basis of a lattice},
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I. V. Cherednik. Nonnegative basis of a lattice. Diskretnaya Matematika, Tome 26 (2014) no. 3, pp. 127-135. http://geodesic.mathdoc.fr/item/DM_2014_26_3_a10/

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