对称2-(15,8,4)设计的区传递自同构群
Block-Transitive Automorphism Groups of Symmetric 2-(15,8,4) Designs
DOI: 10.12677/PM.2021.112026, PDF,   
作者: 代 娟, 周胜林:华南理工大学数学学院,广东 广州
关键词: 对称设计旗传递区传递自同构群Symmetric Design Flag-Transitive Block-Transitive Automorphism Groups
摘要: 本文研究2-(15,8,4)对称设计的区传递自同构群,证明了2-(15,8,4)对称设计的区传递自同构群有9个,旗传递自同构群有6个。同时也给出了该设计的点本原,非点本原,旗传递点本原,旗传递非点本原的自同构群。
Abstract: Let D be a symmetric 2-(15,8,4)design and let G≤Aut(D) be block-transitive. It is proved that, there are exactly such 9 automorphism groups of block-transitive and 6 automorphism groups of flag-transitive. And it also gives the point-primitive, point-imprimitive, flag-transitive point-primitive and flag-transitive point-imprimitive automorphism groups of this design.
文章引用:代娟, 周胜林. 对称2-(15,8,4)设计的区传递自同构群[J]. 理论数学, 2021, 11(2): 186-191. https://doi.org/10.12677/PM.2021.112026

参考文献

[1] Ionin, Y.J. and Shrikhande, M.S. (2006) Combinatorics of Symmetric Designs. Cambridge University Press, Cambridge. [Google Scholar] [CrossRef
[2] Kantor, W.M. (1985) Classification of 2-Transitive Symmetric Designs. Graphs and Combinatorics, 1, 165-166. [Google Scholar] [CrossRef
[3] Dong, H.L. and Zhou, S.L. (2011) Alternating Groups and Flag-Transistive 2-(v,k,4) Symmetrc Designs. Journal of Combinatorial Designs, 19, 475-483. [Google Scholar] [CrossRef
[4] Tian, D.L. and Zhou, S.L. (2016) Classification of Flag-Transitive Primitive Symmetric (v, k, λ) Designs with PSL(2,q) as Socle. Journal of Mathematical Research with Applications, 36, 127-139.
[5] Zhou, S.L. and Tian, D.L. (2011) Flag-Transitive Point-Primitive 2-(v, k, 4) Symmetric Designs and Two Dimensional Classical Groups. Applied Mathematics—A Journal of Chinese Universities, 26, 334-341. [Google Scholar] [CrossRef
[6] Wang, Y.J. and Zhou, S.L. (2017) Flag-Transitive Point-Primitive (v,k,4) Symmetric Designs with Exceptional Socle of Lie Type. Bulletin of the Iranian Mathematical Society, 43, 259-273.
[7] 王亚杰. 2-(v,k,λ)设计的旗传递自同构群[D]: [博士学位论文]. 广州: 华南理工大学, 2016.
[8] Nandi, H.K. (1946) A Further Note on Nonisomorphic Solutions of İncomplete Block Designs. Sankhya, 7, 313-316.
[9] Beth, T., Jungnickel, D. and Lenz, H. (1999) Design Theory. Cambridge University Press, Cambridge. [Google Scholar] [CrossRef
[10] Praeger, C.E. and Zhou, S.L. (2006) Imprimitive Flag-Transitive Symmetric Designs. Journal of Combinatoriial Theory, Series A, 113, 1381-1395. [Google Scholar] [CrossRef
[11] Bosma, W., Cannon, J. and Playoust, C. (1997) The MAGMA Algebra System I: The User Language. Journal of Sym- bolic Computation, 24, 235-265. [Google Scholar] [CrossRef