2 papers
math.AG2025
Nakajima quiver varieties in dimension four
Samuel Lewis, Pavel Shlykov
This paper classifies all 4d Nakajima quiver varieties through a combinatorial approach. For each such variety, we describe the symplectic leaves and minimal degenerations between…
math.RT2024
Real variations of stability on K3 categories
Samuel Lewis
This paper proves that the 2-Calabi-Yau triangulated category associated with the preprojective algebra of an affine or hyperbolic graph admits many real variations of stability co…