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Citation: Wall, Charles Terence Clegg. "Quadratic forms on finite groups, and related topics." Topology 2.4 (1963): 281-298.
Tags: Abelian-anyons, Mathematical
This is one of the first detailed treatments of the theory of quadratic forms on abelian groups. In particular, a classification theorem is sketched.
One interesting subtelty is that quadratic forms are more complicated on abelian groups than odd groups, and in particular are even more complicated on 2-groups of large order. This adds some philosophical complexity to the fact that quantum computation is typically based on Z2 (or larger 2-groups).