Tensor product categorifications and the super Kazhdan-Lusztig conjecture

18 Feb 2016  ·  Brundan Jonathan, Losev Ivan, Webster Ben ·

We give a new proof of the "super Kazhdan-Lusztig conjecture" for the Lie super algebra $\mathfrak{gl}_{n|m}(\mathbb{C})$ as formulated originally by the first author. We also prove for the first time that any integral block of category O for $\mathfrak{gl}_{n|m}(\mathbb{C})$ (and also all of its parabolic analogs) possesses a graded version which is Koszul... Our approach depends crucially on an application of the uniqueness of tensor product categorifications established recently by the second two authors. read more

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Representation Theory Quantum Algebra