Level-rank duality of D-branes on the SU(N) group manifold Original Research Article

The consequences of level-rank duality for untwisted D-branes on an SU(N) group manifold are explored. Relations are found between the charges of D-branes (which are classified by twisted K-theory) belonging to image and image WZW theories, in the case of odd image. An isomorphism between the charge algebras is also demonstrated in this case.