S. H. Alavi

activity

20092026

most citedFlag-transitive block designs and finite exceptional simple groups of Lie type

4 citations · 9 across the 19 of their papers we have counts for

collaborators

Showing 2022Show all

3 papers · 1 filter

math.GR2022

On quantitative structure of symplectic groups

Seyed Hassan Alavi, Ashraf Daneshkhah, Hosein Parvizi Mosaed

The main aim of this article is to study the quantitative structure of projective symplectic groups $P S p_{4} (q)$ with $q > 2$ even. Indeed, we prove that the groups $P S p_{4} (q)$ with…

math.GR2022

Block designs with $g cd (r, λ) = 1$ admitting flag-transitive automorphism groups

Seyed Hassan Alavi, Mohsen Bayat, Mauro Biliotti +12

In this paper, we present a classification of $2$ -designs with $g cd (r, λ) = 1$ admitting flag-transitive automorphism groups. If $G$ is a flag-transitive automorphism group of a non-…

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…

On quantitative structure of symplectic groups

Block designs with gcd(r,λ)=1 admitting flag-transitive automorphism groups

Block-transitive two-designs based on grids

Block designs with $g cd (r, λ) = 1$ admitting flag-transitive automorphism groups