On Darboux-Bäcklund Transformations for the Q-Deformed Korteweg-de Vries Hierarchy
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We study Darboux-Bäcklund transformations (DBTs) for the $q$-deformed Korteweg-de Vries hierarchy by using the $q$-deformed pseudodifferential operators. We identify the elementary DBTs which are triggered by the gauge operators constructed from the (adjoint) wave functions of the hierarchy. Iterating these elementary DBTs we obtain not only $q$-deformed Wronskian-type but also binary-type representations of the tau-function to the hierarchy.
12 pages, Revtex, no figures
12 pages, Revtex, no figures