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For an integral lattice, $L$, its dual is the set $L^\#=\{\vec{v}\in \Q L:B(\vec{v},L)\subseteq \mathbb Z\}$. There is a unique rescaling of the bilinear map $B$ for which $L^\#$ is a primitive integral lattice.

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• Review status: reviewed
• Last edited by Kiran S. Kedlaya on 2018-06-27 08:26:25
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