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理学院秋季第七周学术报告(三)

发布时间:2016-11-12

  报告题目:Constructions of Dihedral Steiner Quadruple Systems

  报告学者:季利均教授

  报告人单位:苏州大学

  报告时间:2016年10月22日星期六下午5:00-6:00

  报告地点:理学院会议室7215

  摘要:   

  A dihedral SQS is an SQS admitting a point-regular dihedral automorphism group. In this talk we shall present some constructions of dihedral SQSs and prove that for v=2,4 (mod 6), there is a dihedral SQS(v) if there is a dihedral H(p,2,4,3) design or an S-cyclic SQS(2p) for each odd prime divisor p of v. As a corollary, we enlarge the set of known values of v for which there exists a dihedral SQS(v).

 

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