Massimiliano Alessandro

activity

20222026

collaborators

4 papers

math.GR2026

Finite quotients of full surface braid groups and complex surfaces of general type: cyclic, dihedral, and extra-special quotients

Massimiliano Alessandro, Michelangelo Migliano, Francesco Polizzi

Let $B_{2} (Σ_{g})$ be the full braid group on two strings on a compact Riemann surface of genus $g$ . We compute the number of finite cyclic, dihedral and extra-special quotien…

math.AG2025

Pluricanonical Geometry of Varieties Isogenous to a Product and Abelian Covers

Massimiliano Alessandro, Davide Frapporti, Christian Gleissner

We study canonical and pluricanonical maps of varieties isogenous to a product of curves, i.e., quotients of the form $X = (C_{1} \times \dots \times C_{n}) / G$ with $g (C_{i}) \geq 2$ and $…

math.AG2022

On the components of the Main Stream of the moduli space of surfaces of general type with $p_{g} = q = 2$

Massimiliano Alessandro, Fabrizio Catanese

We give first an easy construction of surfaces with $p_{g} = q = 2, K^{2} = 5$ and Albanese map of degree $3$ , describing an irreducible connected component of the moduli space of surfaces o…

math.GR2022

Semi-Projective Representations and Twisted Representation Groups

Massimiliano Alessandro, Christian Gleissner, Julia Kotonski

A semi-projective representation is a homomorphism of a finite group into the group of semi-projective transformations of a finite dimensional vector space over a field. Schur's co…

Finite quotients of full surface braid groups and complex surfaces of general type: cyclic, dihedral, and extra-special quotients

Pluricanonical Geometry of Varieties Isogenous to a Product and Abelian Covers

On the components of the Main Stream of the moduli space of surfaces of general type with pg​=q=2

Semi-Projective Representations and Twisted Representation Groups

On the components of the Main Stream of the moduli space of surfaces of general type with $p_{g} = q = 2$