Geodesic
Sails and Hilbert Bases
Trudy Matematicheskogo Instituta imeni V.A. Steklova, Discrete geometry and geometry of numbers, Tome 239 (2002), pp. 98-105

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

A sail is the boundary of a Klein polyhedron. A relation between certain properties of sails is determined. In particular, a criterion is presented for the Hilbert basis of the semigroup of integer points of a cone in $\mathbb R^3$ and $\mathbb R^4$ to be contained in the sail. 
@article{TM_2002_239_a5,
     author = {O. N. German},
     title = {Sails and {Hilbert} {Bases}},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {98--105},
     publisher = {mathdoc},
     volume = {239},
     year = {2002},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TM_2002_239_a5/}
}
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O. N. German. Sails and Hilbert Bases. Trudy Matematicheskogo Instituta imeni V.A. Steklova, Discrete geometry and geometry of numbers, Tome 239 (2002), pp. 98-105. http://geodesic.mathdoc.fr/item/TM_2002_239_a5/