by Gabriele Nebe, Lehrstuhl B Fur Mathematik, Rwth Aachen, D- Aachen
J. Algebra
http://www-math.math.rwth-aachen.de/~LBFM/gabi/papers/cycloquat.ps
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Abstract:
The faithful lattices of rank 2(p \Gamma 1) of the groups SL 2 (p) are described. For small primes p these and related lattices are investigated by computer. In particular a new extremal even unimodular lattice of rank 48 is constructed. Introduction. The study of finite integral matrix groups is one source for producing nice lattices. In particular representations of the group PSL 2 (p) for p j 3 (mod 4) have been studied in [10] in connection with globally irreducible representations.
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