Flag-Transitive Symmetric \((v, k, \lambda)\) Designs Admitting Primitive Automorphism Groups with Socle PSL\((2, 11)\)

Delu Tian1, Shenglin Zhou2
1Department of Mathematics, Guangdong University of Education, Guangzhou, Guangdong 5103093, P. R. China
2 Department of Mathematics, South Chine University of Technology, Guangzhou, Guangdong 510640, P. R. China

Abstract

In this paper, we obtained two flag-transitive symmetric \((v, k, \lambda)\) designs admitting primitive automorphism groups of almost simple type with socle \(X = \mathrm{PSL}(12, 2)\).