A new result on the distinctness of primitive sequences over Z/ (pq) modulo 2

  • Authors:
  • Qun-Xiong Zheng;Wen-Feng Qi

  • Affiliations:
  • Department of Applied Mathematics, Zhengzhou Information Science and Technology Institute, Zhengzhou, PR China;Department of Applied Mathematics, Zhengzhou Information Science and Technology Institute, Zhengzhou, PR China and State Key Laboratory of Information Security, Institute of Software, Chinese Acad ...

  • Venue:
  • Finite Fields and Their Applications
  • Year:
  • 2011

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Abstract

Let Z/(pq) be the integer residue ring modulo pq with odd prime numbers p and q. This paper studies the distinctness problem of modulo 2 reductions of two primitive sequences over Z/(pq), which has been studied by H.J. Chen and W.F. Qi in 2009. First, it is shown that almost every element in Z/(pq) occurs in a primitive sequence of order n2 over Z/(pq). Then based on this element distribution property of primitive sequences over Z/(pq), previous results are greatly improved and the set of primitive sequences over Z/(pq) that are known to be distinct modulo 2 is further enlarged.