Flag-transitive $2$-$(v,k,\hat{I}»)$ designs with $\hat{I}»\ge (r,\hat{I}»{)}^2$

Junchi Zhang, Jianbing Lu, Meizi Ou

This paper is devoted to the study of $2$-designs with $\hat{I}»\ge (r,\hat{I}»{)}^2$ admitting a flag-transitive automorphism group $G$. The group $G$ has been shown to be point-primitive of ei…