Flag-transitive 2-(v, k, λ) symmetric designs with λ ≥ (k , λ)2 and alternating socle

作者：Wang, Yajie^*; Zhou, Shenglin

来源：Discrete Mathematics, 2020, 343(9): 111973.

DOI：10.1016/j.disc.2020.111973

• 2-(v, k, lambda) symmetric design
• Automorphism group
• Flag-transitive
• Alternating group

Let D be 2-(v, k, lambda) symmetric designs, let G <= Aut(D) be flag-transitive. In this paper, all symmetric designs D with lambda >= (k, lambda)(2) and Soc(G) = A(n) for n >= 5 are classified.