activity
20232026
collaborators

7 papers

math.AG2026

Corrigendum to "Nonsymplectic automorphisms of prime order on O'Grady's sixfolds"

Annalisa Grossi, Stevell Muller

In this short note we correct the lattice theoretic classification in [Rev. Mat. Iberoam. 38 (2022), no. 4, 1199--1218] of the first named author, including some missing cases and…

math.AG2026

Finite order symplectic birational self-maps on Kummer-type manifolds

Yajnaseni Dutta, Dominique Mattei, Stevell Muller +1

A projective hyperkähler manifold of Kummer-type is said to be twisted modular if it is birational to the Albanese fiber of a moduli space of twisted sheaves on an abelian surface.…

math.AG2025

Very ample line bundles on weighted projective spaces and weighted blowups

Stevell Muller, Erik Paemurru

We consider line bundles on weighted projective spaces, where is an integer and is the least common multiple of the weights. Such line bundles are ample i…

math.AG2024

Automorphisms of Nikulin-type orbifolds

Simon Brandhorst, Grégoire Menet, Stevell Muller

Nikulin-type orbifolds are certain singular 4-dimensional irreducible holomorphic symplectic varieties. We show that the monodromy group of Nikulin-type orbifolds is maximal and cl…

math.AG2024

Algebraically trivial automorphisms of irreducible holomorphic symplectic manifolds

Stevell Muller

We extend the lattice-theoretic approach of Brandhorst--Cattaneo to classify algebraically trivial actions on the known IHS manifolds, up to deformation and birational conjugacy. I…

math.AG2024

On birational automorphisms of double EPW-cubes

Simone Billi, Stevell Muller, Tomasz Wawak

We give a classification of finite groups of symplectic birational automorphisms on a manifold of K3^[3]-type with stable and stably saturated cohomological action. We describe the…