A. Daneshkhah

activity

20112022

collaborators

Showing math.COShow all

3 papers · 1 filter

math.CO2022

Block-transitive two-designs based on grids

Seyed Hassan Alavi, Ashraf Daneshkhah, Alice Devillers +1

We study point-block incidence structures $(P, B)$ for which the point set $P$ is an $m \times n$ grid. Cameron and the fourth author showed that each b…

math.CO2019

Symmetric designs and four dimensional projective special unitary groups

Seyed Hassan Alavi, Mohsen Bayat, Asharf Daneshkhah +1

In this article, we study symmetric $(v, k, λ)$ designs admitting a flag-transitive and point-primitive automorphism group $G$ whose socle is $P S U_{4} (q)$ . We prove that there exis…

math.CO2011

A classification of graphs whose subdivision graphs are locally $G$ -distance transitive

Ashraf Daneshkhah, Alice Devillers

The subdivision graph $S (Σ)$ of a connected graph $Σ$ is constructed by adding a vertex in the middle of each edge. In a previous paper written with Cheryl E. Praeger, we character…

Block-transitive two-designs based on grids

Symmetric designs and four dimensional projective special unitary groups

A classification of graphs whose subdivision graphs are locally G-distance transitive

A classification of graphs whose subdivision graphs are locally $G$ -distance transitive