数学理论与应用 ›› 2016, Vol. 36 ›› Issue (4): 8-17.

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点数不超过20的旗传递非对称2-设计

刘燕, 周胜林   

  1. 华南理工大学数学学院,广州,广东,510640
  • 出版日期:2016-12-30 发布日期:2020-09-25
  • 基金资助:

    国家自然科学基金(No:11471123)资助

Flag-transitive Non-symmetric 2-designs with at Most 20 Points

Liu Yan, Zhou Shenglin   

  1. School of Mathematics,South China University of Technology,Guangzhou 510640,China
  • Online:2016-12-30 Published:2020-09-25

摘要: 本文研究了旗传递点数不大于20的2-(v,k,λ)设计的分类,证明了当(r,λ)=1时,在同构意义下只存在18个这样的设计.

关键词: 非对称2-设计, 自同构群, 旗传递

Abstract: In this paper,we study the classification of flag-transitive nonsymmetric 2-(v,k,λ)designs with v ≤20.We prove that if(r,λ)=1then there are exactly 18non-isomorphic designs.

Key words: Nonsymmetric, 2-design Automorphism group, Flag-transitive