Loop realizations of quantum affine algebras
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Cautis, Sabin
Licata, Anthony
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American Institute of Physics
Abstract
We give a simplified description of quantum affine algebras in their loop
presentation. This description is related to Drinfeld's new realization via
halves of vertex operators. We also define an idempotent version of the quantum
affine algebra which is suitable for categorification.
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Journal of Mathematical Physics
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