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Level-rank duality via fusion product

V. V. Ostrik



Abstract: I will report on my joint work with Michael Sun. We apply the theory of fusion product in order to give a simple proof of affine branching rules for the restriction of integrable highest weight modules over $sl(MN)$ at level $1$ to $sl(M)$ plus $sl(N)$.

Language: English


© Steklov Math. Inst. of RAS, 2026