Multi-continued fraction algorithm and generalized B--M algorithm over Fq

  • Authors:
  • Zongduo Dai;Junhui Yang

  • Affiliations:
  • State Key Laboratory of Information Security, Graduate School of Chinese Academy of Sciences, Beijing 100039, China;Software Institute of Chinese Academy of Sciences, Beijing 100080, China

  • Venue:
  • Finite Fields and Their Applications
  • Year:
  • 2006

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Abstract

An iterative algorithm in solving the linear synthesis problem on multi-sequences over finite fields is derived from the multi-strict continued fraction algorithm (m-SCFA in short). It is interesting that the derived iterative algorithm is the same as the generalized Berlekamp-Massey algorithm (GBMA in short), though the computations in the m-SCFA and the GBMA are completely different. As a consequence, the minimal polynomials and the discrepancy sequence obtained by acting GBMA on a multi-sequence r@? are expressed explicitly by data associated to the multi-strict continued fraction expansion of r@?.