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      Permanent link:
      https://www.ias.ac.in/article/fulltext/pmsc/118/02/0183-0188

    • Keywords

       

      Davenport’s constant; zero-sum problems.

    • Abstract

       

      For an abelian group 𝐺, the Davenport constant $D(G)$ is defined to be the smallest natural number 𝑘 such that any sequence of 𝑘 elements in 𝐺 has a non-empty subsequence whose sum is zero (the identity element). Motivated by some recent developments around the notion of Davenport constant with weights, we study them in some basic cases. We also define a new combinatorial invariant related to $(\mathbb{Z}/n\mathbb{Z})^d$, more in the spirit of some constants considered by Harborth and others and obtain its exact value in the case of $(\mathbb{Z}/n\mathbb{Z})^2$ where 𝑛 is an odd integer.

    • Author Affiliations

       

      S D Adhikari1 R Balasubramanian2 F Pappalardi3 P Rath3

      1. Harish-Chandra Research Institute, Chhatnag Road, Jhusi, Allahabad 211 019, India
      2. Institute of Mathematical Sciences, Chennai 600 113, India
      3. Dipartimento di Matematica, Universit`a degli Studi Roma Tre, Largo S. L. Murialdo, 1, I-00146 Roma, Italia

    • Dates

       
      Published
      May 2008
      Manuscript received
      28 February 2007

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