A. Daneshkhah

collaborators

3 papers

math.GR2025

On flag-transitive automorphism groups of $2$ -designs with $I^»$ prime

Seyed Hassan Alavi, Ashraf Daneshkhah, Alessandro Montinaro

In this article, we study $2$ - $(v, k, I^»)$ designs $D$ with $I^»$ prime admitting flag-transitive and point-primitive almost simple automorphism groups $G$ with socle $T$ a…

math.GR2024

Affine groups as flag-transitive and point-primitive automorphism groups of symmetric designs

Seyed Hassan Alavi, Mohsen Bayat, Ashraf Daneshkhah +1

In this article, we investigate symmetric designs admitting a flag-transitive and point-primitive affine automorphism group. We prove that if an automorphism group $G$ of a symmetr…

math.CO2024

Higher-dimensional grid-imprimitive block-transitive designs

Seyed Hassan Alavi, Carmen Amarra, Ashraf Daneshkhah +2

It was shown in 1989 by Delandtsheer and Doyen that, for a $2$ -design with $v$ points and block size $k$ , a block-transitive group of automorphisms can be point-imprimitive (that i…

On flag-transitive automorphism groups of 2-designs with I^» prime

Affine groups as flag-transitive and point-primitive automorphism groups of symmetric designs

Higher-dimensional grid-imprimitive block-transitive designs

On flag-transitive automorphism groups of $2$ -designs with $I^»$ prime