Every special triple of representations in SU(2) and SU(3) WZW theories contains a simple current, fully classifying the boundary operators invariant under topological defect junctions in these models.
A new proof of a formula for the type $A_2$ fusion rules
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We give a new proof of a formula for the fusion rules for type $A_2$ due to B\'egin, Mathieu, and Walton. Our approach is to symbolically evaluate the Kac-Walton algorithm.
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On local fields invariant under the action of topological defects
Every special triple of representations in SU(2) and SU(3) WZW theories contains a simple current, fully classifying the boundary operators invariant under topological defect junctions in these models.