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R-Matrix presentation of quantum affine algebra in type $A_{2n-1}^{(2)}$
Published 7 Feb 2022 in math.QA | (2202.03403v1)
Abstract: In this paper, we give an RTT presentation of the twisted quantum affine algebra of type $A_{2n-1}{(2)}$ and show that it is isomorphic to the Drinfeld new realization via the Gauss decomposition of the L-operators. This provides the first such presentation for twisted quantum affine algebras with nontrivial central element.
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