Geodesic
Defining-relations for Hurwitz groups
Glasgow mathematical journal, Tome 36 (1994) no. 3, pp. 363-370

Voir la notice de l'article provenant de la source Cambridge University Press

With much sadness we note the death of John Leech, on 28 September 1992. Perhaps best known for his discovery of the “Leech Lattice” (which provides the best known sphere-packing in 24 dimensions), John will also be remembered for his contributions to the use of computers in mathematics, and to computational algebra in particular. 
Campbell, C. M.; Conder, M. D. E.; Robertson, E. F. Defining-relations for Hurwitz groups. Glasgow mathematical journal, Tome 36 (1994) no. 3, pp. 363-370. doi: 10.1017/S0017089500030974
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