Abstract
Let \(U'_q(\mathfrak {g})\) be a twisted affine quantum group of type \(A_{N}^{(2)}\) or \(D_{N}^{(2)}\) and let \(\mathfrak {g}_{0}\) be the finite-dimensional simple Lie algebra of type \(A_{N}\) or \(D_{N}\). For a Dynkin quiver of type \(\mathfrak {g}_{0}\), we define a full subcategory \({\mathcal C}_{Q}^{(2)}\) of the category of finite-dimensional integrable \(U'_q(\mathfrak {g})\)-modules, a twisted version of the category \({\mathcal C}^{(1)}_{Q}\) introduced by Hernandez and Leclerc. Applying the general scheme of affine Schur–Weyl duality, we construct an exact faithful KLR-type duality functor \({\mathcal F}_{Q}^{(2)}:\mathrm{Rep}(R) \rightarrow {\mathcal C}_{Q}^{(2)}\), where \(\mathrm{Rep}(R)\) is the category of finite-dimensional modules over the quiver Hecke algebra R of type \(\mathfrak {g}_{0}\) with nilpotent actions of the generators \(x_k\). We show that \({\mathcal F}_{Q}^{(2)}\) sends any simple object to a simple object and induces a ring isomorphism .
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Dedicated to Professor Joseph Bernstein on the occasion of his seventieth Birthday.
This work was supported by NRF Grant # 2014-021261 and by NRF Grant # 2010-0010753.
This work was partially supported by Grant-in-Aid for Scientific Research (B) 22340005, Japan Society for the Promotion of Science.
This work was supported by NRF Grant # 2016R1C1B2013135.
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Kang, SJ., Kashiwara, M., Kim, M. et al. Symmetric quiver Hecke algebras and R-matrices of quantum affine algebras IV. Sel. Math. New Ser. 22, 1987–2015 (2016). https://doi.org/10.1007/s00029-016-0267-5
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DOI: https://doi.org/10.1007/s00029-016-0267-5