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Let s be a positive integer. Our goal is to find all finite abelian groups G that contain a $2$-subset A for which the undirected Cayley graph Γ(G,A) has diameter at most s. We provide a complete answer when G is cyclic, and a conjecture and some partial answers when G is noncyclic.
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Bajnok et al. (2024) studied this question.
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