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Bibliographic Details
Main Authors: Varagnolo, Michela, Vasserot, Eric
Format: Preprint
Published: 2025
Subjects:
Online Access:https://arxiv.org/abs/2503.06262
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Table of Contents:
  • We compare the integral category O of shifted affine quantum groups of symmetric and non symmetric types. To do so we compute the K-theoretic analog of the Coulomb branches with symmetrizers introduced by Nakajima and Weekes. This yields an equivalence of the category O with a module category over a new type of quiver Hecke algebras. At the decategorified level, this establishes a connection between the Grothendieck group of O and a finite-dimensional module over a simple Lie algebra of unfolded symmetric type. We compute this module in certain cases and give a combinatorial rule for its crystal.