Constructions of relative difference sets with classical parameters and circulant weighing matrices

  • Authors:
  • Ka Hin Leung;Siu Lun Ma;Bernhard Schmidt

  • Affiliations:
  • Department of Mathematics, National University of Singapore, 2 Science Drive 2, Singapore 117543, Republic of Singapore;Department of Mathematics, National University of Singapore, 2 Science Drive 2, Singapore 117543, Republic of Singapore;Mathematisches Institut, Universität Augsburg, Unversitäitsstraße 15, 86135 Augsburg, Germany

  • Venue:
  • Journal of Combinatorial Theory Series A
  • Year:
  • 2002

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Abstract

In this paper, a new family of relative difference sets with parameters (m, n, k, λ) = ((q7 -1)/(q - 1),4(q - 1),q6,q5/4) is constructed where q is a 2-power. The construction is based on the technique used in [2]. By a similar method, we also construct some new circulant weighing matrices of order qd-1 where q is a 2-power, d is odd and d ≥ 5.