Abstract
A generalization of the Davenport constant is investigated. For a finite abelian group G and a positive integer k , let D k ( G ) denote the smallest ℓ such that each sequence over G of length at least ℓ has k disjoint non-empty zero-sum subsequences. For general G , expanding on known results, upper and lower bounds on these invariants are investigated and it is proved that the sequence ( D k ( G ) ) k ∈ N is eventually an arithmetic progression with difference exp ( G ) , and several questions arising from this fact are investigated. For elementary 2 -groups, D k ( G ) is investigated in detail; in particular, the exact values are determined for groups of rank four and five (for rank at most three they were already known).
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