148 research outputs found
Configurations of Rank-40r Extremal Even Unimodular Lattices (r=1,2,3)
We show that if L is an extremal even unimodular lattice of rank 40r with
r=1,2,3 then L is generated by its vectors of norms 4r and 4r+2. Our result is
an extension of Ozeki's result for the case r=1.Comment: 5 pages. To appear, Journal de Theorie des Nombres de Bordeau
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