Symmetric designs and four dimensional projective special unitary groups

被引:4
|
作者
Alavi, Seyed Hassan [1 ]
Bayat, Mohsen [1 ]
Daneshkhah, Ashraf [1 ]
Zarin, Sheyda Zang [1 ]
机构
[1] Bu Ali Sina Univ, Fac Sci, Dept Math, Hamadan, Iran
关键词
Symmetric design; Point-primitive; Flag-transitive; Automorphism group; Finite simple projective unitary group; SUBGROUPS;
D O I
10.1016/j.disc.2018.12.010
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
In this article, we study symmetric (v, k, lambda) designs admitting a flag-transitive and point-primitive automorphism group G whose socle is PSU4(q). We prove that there exist eight non-isomorphic such designs for which lambda is an element of {3, 6, 181 and G is either PSU4(2), or PSU4(2) : 2. (C) 2018 Elsevier B.V. All rights reserved.
引用
收藏
页码:1159 / 1169
页数:11
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