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Jun 25, 2018 at 16:47 comment added Zhi-Wei Sun @kodlu Yes, your understanding is correct.
Jun 24, 2018 at 23:41 comment added kodlu Is an $n\times n\times n$ subcube essentially $J_1\times J_2 \times J_3$ where $J_i\subset \mathbb{Z}/N\mathbb{Z}$ for $i=1,2,3,$ and $|J_i|=n$?
Jun 24, 2018 at 0:22 history asked Zhi-Wei Sun CC BY-SA 4.0