L. Topley

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math.RT2026

Quantization of nilpotent coadjoint $G L_{N}$ -orbit closures in positive characteristics

Filippo Ambrosio, Lewis Topley, Matthew Westaway

Let $G$ be a reductive group over an algebraically closed field of positive characteristic $p$ , good for the root system of $G$ . The closures of $G$ -orbits in the Hilbert nullcone…

math.RT2026

Sheets, Jordan classes and induced orbits in the exotic and enhanced modules

Filippo Ambrosio, Giovanna Carnovale, Francesco Esposito +2

Kato developed an exotic Deligne-Langlands correspondence using a geometric model for the multiparameter affine Hecke algebra of type C, based on his exotic nilpotent cone. Achar-H…

Quantization of nilpotent coadjoint GLN​-orbit closures in positive characteristics

Sheets, Jordan classes and induced orbits in the exotic and enhanced modules

Quantization of nilpotent coadjoint $G L_{N}$ -orbit closures in positive characteristics