The analysis shows tiles with prime size exhibit spectral properties, indicating the behavior of tiling complements in subgroup structures.
We prove that if a tile in Zᵈ has prime size p, then it must be spectral. The proof is by contradiction, it is simply shown that the tiling complement of such a tile can not annihilate all p-subgroups. In addition, with a simple transformation we prove that any p points in general linear positions in Zᵈ must be both tiling and spectral if d≥ p-1.
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Weiqi Zhou (2025) studied this question.
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