In recent years several authors have determined some 2-designs with flag-transitive point-primitive automorphism group G......

We state that the flag-transitive automorphism group of a 2-(v,5,λ) design D is primitive of affine type or almost simp......

旗传递性是附加在2-设计的自同构群上的重要条件之一。1988年,Zieschang证明了旗传递2-（v,k,λ）设计当（r,λ）=1时其自同构群G只能是仿......