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math.RT2023★ 1 cited
Generators of the preprojective CoHA of a quiver
Andrei Neguţ
In this short note, we refine a result of Schiffmann-Vasserot, by showing that the localized preprojective cohomological Hall algebra of any quiver is spherical, i.e. generated by…
hep-th2023
Reduced quiver quantum toroidal algebras
Andrei Neguţ
We give a generators-and-relations description of the reduced versions of quiver quantum toroidal algebras, which act on the spaces of BPS states associated to (non-compact) toric…