2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/70485We compare various bases of the affine quantum group $\mathbfU^ (\hat\mathfrak{sl}_2)$ in the context of the Kronecker quiver, and relate them to the Drinfeld presentation.15 pages, presentation improved and some references addedQuantum AlgebraRepresentation Theory16G20,(17B67)text