The **automorphism group** of an integral lattice $L$ is the group of isometries from $L$ to itself. For a positive definite lattice, this is a finite group.

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- Last edited by Kiran S. Kedlaya on 2018-06-27 09:32:34

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- 2018-06-27 09:32:34 by Kiran S. Kedlaya (Reviewed)