Apr 20, 2024 · We consider 2-designs which admit a group of automorphisms that is flag-transitive and leaves invariant a chain of nontrivial ...

Jan 25, 2024 · We consider 2-designs which admit a group of automorphisms that is flag-transitive and leaves invariant a chain of nontrivial point-partitions.

Apr 20, 2024 · We consider 2-designs which admit a group of automorphisms that is flag-transitive and leaves invariant a chain of nontrivial ...

We consider 2-designs which admit a group of automorphisms that is flag-transitive and leaves invariant a chain of nontrivial point-partitions.

We consider 2-designs which admit a group of automorphisms that is flag-transitive and leaves invariant a chain of nontrivial point-partitions.

In 1987, Huw Davies proved that, for a flag-transitive point-imprimitive 2-( v, k, λ ) design, both the block-size k and the number v of points are bounded ...

In this paper we develop several general methods for analysing flag-transitive point-imprimitive 2 -designs, which give restrictions on both the automorphisms ...

This paper is devoted to the classification of flag-transitive 2- designs. We show that apart from two known symmetric 2- designs, every flag-transitive ...

Mar 21, 2023 · Imprimitive flag-transitive designs with other small values of λhave been studied in [30]. There have been studies focusing on point-imprimitive ...