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math.AG2025
Stacky Resolutions of Kleinian Singularities and Nakajima Quiver Varieties
Lukas Bertsch, Ruth Wye
We construct a class of noncommutative crepant resolutions of any Kleinian singularity as noncommutative sheaves of algebras over its crepant partial resolutions. We argue that suc…
math.AG2025
Quiver Schemes for Nongeneric Stability and Cornering
Lukas Bertsch, Søren Gammelgaard
We use the Le Bruyn--Procesi theorem to prove several results on quiver schemes for nongeneric stability conditions: We show that the stability-zero finite-type Nakajima quiver sch…