Inverse zero-sum problems

@article{Gao2007InverseZP,
  title={Inverse zero-sum problems},
  author={Weidong Gao and Alfred Geroldinger and Wolfgang A. Schmid},
  journal={Acta Arithmetica},
  year={2007},
  volume={128},
  pages={245-279}
}
Let G be an additive finite abelian group with exponent exp(G) = n. We define some central invariants in zero-sum theory: Let • D(G) denote the smallest integer l ∈ N such that every sequence S over G of length |S| ≥ l has a zero-sum subsequence. • η(G) denote the smallest integer l ∈ N such that every sequence S over G of length |S| ≥ l has a zero-sum subsequence T of length |T | ∈ [1, n]. • s(G) denote the smallest integer l ∈ N such that every sequence S over G of length |S| ≥ l has a zero… 

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