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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 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 -design with points and block size , a block-transitive group of automorphisms can be point-imprimitive (that i…