Dense lattices as Hermitian tensor products

@inproceedings{Coulangeon2013DenseLA,
  title={Dense lattices as Hermitian tensor products},
  author={Renaud Coulangeon and Gabriele Nebe},
  year={2013}
}
Using the Hermitian tensor product description of the extremal even unimodular lattice of dimension 72 found by Nebe in 2010 we show its extremality with the methods from Coulangeons article in Acta Arith. 2000. 
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