Subregular representations of n and simple singularities of type An-1
Abstract
Alexander Premet has stated the following problem: what is a relation between subregular nilpotent representations of a classical semisimple restricted Lie algebra and non-commutative deformations of the corresponding singularities? We solve this problem for type A. Using the McKay correspondence, we relate the solution to bases in equivariant K-theory introduced by Lusztig.
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