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机构地区:[1]Department of Mathematics, South China University of Technology, Guangzhou 510640, China
出 处:《Applied Mathematics(A Journal of Chinese Universities)》2011年第3期334-341,共8页高校应用数学学报(英文版)(B辑)
基 金:Supported by the National Natural Science Foundation of China(11071081)
摘 要:Let D be a 2-(v, k, 4) symmetric design and G be a flag-transitive point-primitive automorphism group of D with X ≥G ≤Aut(X) where X ≌ PSL2(q).Then D is a 2-(15,8,4) symmetric design with X = PSL2(9) and Xx = PGL2(3) where x is a point of D.Let D be a 2-(v, k, 4) symmetric design and G be a flag-transitive point-primitive automorphism group of D with X ≥G ≤Aut(X) where X ≌ PSL2(q).Then D is a 2-(15,8,4) symmetric design with X = PSL2(9) and Xx = PGL2(3) where x is a point of D.
关 键 词:Symmetric design FLAG-TRANSITIVE point-primitive two dimensional classical group.
分 类 号:S226.5[农业科学—农业机械化工程] O157.2[农业科学—农业工程]
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