Weighted zero-sum problems over Cr3
Abstract
Let Cn be the cyclic group of order n and set sA(Crn) as the smallest integer ℓ such that every sequence S in Crn of length at least ℓ has an A-zero-sum subsequence of length equal to exp(Crn), for A={−1,1}. In this paper, among other things, we give estimates for sA(Cr3), and prove that sA(C33)=9, sA(C43)=21 and 41≤sA(C53)≤45.
Keywords
Weighted zero-sum, abelian groups
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