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user 40659
For questions on modules over rings.
2
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Looking for a reference: double orthogonal complement in $(\mathbb{Z}/q\mathbb{Z})^n$
I'm using the following result in a computer science paper:
Let $V$ be a submodule of $(\mathbb{Z}/q\mathbb{Z})^n$ (n-tuples with addition and multiplication mod $q$). Let
$$V^\perp = \{u \in (\math …
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