activity
20192026
most citedMultiplicity-free representations of the principal A1-subgroup in a simple algebraic group

1 citations · 1 across the 6 of their papers we have counts for

collaborators

7 papers

math.GR2026

Sylow synchronization in finite groups: the good case

Hong Yi Huang, Francesca Lisi, Aluna Rizzoli +1

Let be a finite solvable group such that, for any prime and any quotient of , there are two Sylow -subgroups of intersecting in . Then, for every fami…

math.GR2026

Common neighbour conjectures for Saxl graphs fail at every base size

Aluna Rizzoli, Adam R. Thomas

For a finite permutation group, a base is a set of points with trivial pointwise stabiliser, and the generalised Saxl graph records which pairs of points lie together in a base of…

math.GR2026

Finding 59:29 in the Monster

Heiko Dietrich, Melissa Lee, Anthony Pisani +1

The classification of the maximal subgroups of the Monster group has been completed recently, and explicit generators for each such subgroup (up to conjugacy) have been made availa…

math.RT2024★ 1 cited

Multiplicity-free representations of the principal A1-subgroup in a simple algebraic group

Aluna Rizzoli, Donna Testerman

Let G be a simple algebraic group defined over an algebraically closed field k of characteristic p>0. Here we classify all irreducible kG-modules for which the principal A1 has no…

math.GR2023

Generic stabilizers for simple algebraic groups acting on orthogonal and symplectic Grassmannians

Aluna Rizzoli

We consider faithful actions of simple algebraic groups on self-dual irreducible modules, and on the associated varieties of totally singular subspaces, under the assumption that t…

math.GR2021

Modules for algebraic groups with finitely many orbits on totally singular 2-spaces

Aluna Rizzoli

This is the author's second paper treating the double coset problem for classical groups. Let be an algebraic group over an algebraically closed field . The double coset pro…

math.GR2019

Finite Singular Orbit Modules for Algebraic Groups

Aluna Rizzoli

Building on the classification of modules for algebraic groups with finitely many orbits on subspaces, we determine all faithful irreducible modules for simple and maximal-semisimp…