Alessandro Montinaro

activity

20222026

most citedOn quasi-Hermitian varieties in even characteristic and related orthogonal arrays

2 citations · 3 across the 17 of their papers we have counts for

collaborators

Showing 2025Show all

6 papers · 1 filter

math.CO2025

2-(v,k,3) designs admitting an almost simple, flag-transitive automorphism group with socle PSL(2,q)

Hongxue Liang, Zhihui Liu, Alessandro Montinaro

In this paper, we completely classify the non-trivial 2-(v,k,3) designs admitting an almost simple, flag-transitive automorphism group with socle PSL(2,q).

math.CO2025

$EA (q)$ -additive Steiner 2-designs

Marco Buratti, Mario Galici, Alessandro Montinaro +2

A design is $G$ -additive with $G$ an abelian group, if its points are in $G$ and each block is zero-sum in $G$ . All the few known ``manageable" additive Steiner 2-designs are $\mat…

math.GR2025

The Flag-Transitive and Point-Imprimitive Symmetric $(v, k, λ)$ Designs with $v < 100$

Mario Galici, Alessandro Montinaro

A complete classification of the flag-transitive point-imprimitive symmetric $2$ - $(v, k, λ)$ designs with $v < 100$ is provided. Apart from the known examples with $λ \leq 10$ , the comp…

math.CO2025

On a class of quasi-Hermitian surfaces in even characteristic

Angela Aguglia, Alessandro Montinaro

In [1], a new quasi-Hermitian variety $H_{ε}^{r}$ in $PG (r, q^{2})$ , with $q = 2^{e}$ and $e \geq 3$ an odd integer, was constructed. The variety depends on a…

math.GR2025

On flag-transitive automorphism groups of $2$ -designs with $λ$ prime

Seyed Hassan Alavi, Ashraf Daneshkhah, Alessandro Montinaro

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

math.CO2025

The Higman-M\lowercase{c}Laughlin Theorem for the flag-transitive $2$ -designs with $λ$ prime

Alessandro Montinaro

A famous result of Higman and McLaughlin \cite{HM} in 1961 asserts that any flag-transitive automorphism group $G$ of a $2$ -design $D$ with $λ = 1$ acts point-primitively o…

2-(v,k,3) designs admitting an almost simple, flag-transitive automorphism group with socle PSL(2,q)

EA(q)-additive Steiner 2-designs

The Flag-Transitive and Point-Imprimitive Symmetric (v,k,λ) Designs with v<100

On a class of quasi-Hermitian surfaces in even characteristic

On flag-transitive automorphism groups of 2-designs with λ prime

The Higman-M\lowercase{c}Laughlin Theorem for the flag-transitive 2-designs with λ prime

$EA (q)$ -additive Steiner 2-designs

The Flag-Transitive and Point-Imprimitive Symmetric $(v, k, λ)$ Designs with $v < 100$

On flag-transitive automorphism groups of $2$ -designs with $λ$ prime

The Higman-M\lowercase{c}Laughlin Theorem for the flag-transitive $2$ -designs with $λ$ prime