Ternary Kloosterman sums modulo 18 using Stickelberger's theorem

  • Authors:
  • Faruk Gölogğlu;Gary McGuire;Richard Moloney

  • Affiliations:
  • School of Mathematical Sciences, University College Dublin, Ireland;School of Mathematical Sciences, University College Dublin, Ireland;School of Mathematical Sciences, University College Dublin, Ireland

  • Venue:
  • SETA'10 Proceedings of the 6th international conference on Sequences and their applications
  • Year:
  • 2010

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Abstract

A result due to Helleseth and Zinoviev characterises binary Kloosterman sums modulo 8. We give a similar result for ternary Kloosterman sums modulo 9. This leads to a complete characterisation of values that ternary Kloosterman sums assume modulo 18. The proof uses Stickelberger's theorem and Fourier analysis.