Hecke-Clifford superalgebras and crystals of type $D^{(2)}_{l}$

Details Hecke-Clifford superalgebras and crystals of type $D^{(2)}_{l}$ Hecke-Clifford superalgebras and crystals of type $D^{(2)}_{l}$

2009-07-28

arxiv.org/abs/0907.4936v2

Mathematics

Representation Theory

38 papes

Scientific paper

Brundan and Kleshchev showed that some parts of the representation theory of the affine Hecke-Clifford superalgebras and its finite-dimensional "cyclotomic" quotients are controlled by the Lie theory of type $A^{(2)}_{2l}$ when the quantum parameter $q$ is a primitive $(2l+1)$-th root of unity. We show in this paper that similar theorems hold when $q$ is a primitive $4l$-th root of unity by replacing the Lie theory of type $A^{(2)}_{2l}$ with that of type $D^{(2)}_{l}$.

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