Existence of Kirillov-Reshetikhin crystals for near adjoint nodes in exceptional types
Abstract: We prove that, in types $E_{6,7,8}{(1)}$, $F_4{(1)}$ and $E_6{(2)}$, every Kirillov--Reshetikhin module associated with the node adjacent to the adjoint one (near adjoint node) has a crystal pseudobase, by applying the criterion introduced by Kang et.al. In order to apply the criterion, we need to prove some statements concerning values of a bilinear form. We achieve this by using the global bases of extremal weight modules.
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