Two-rowed Hecke algebra representations at roots of unity |
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Authors: | Trevor Alan Welsh |
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Affiliation: | (1) Faculty of Mathematical Studies, University of Southampton, SO17 1BJ Southampton, UK |
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Abstract: | In this paper, we initiate a study into the explicit construction of irreducible representations of the Hecke algebraHn(q) of typeAn-1 in the non-generic case whereq is a root of unity. The approach is via the Specht modules ofHn(q) which are irreducible in the generic case, and possess a natural basis indexed by Young tableaux. The general framework in which the irreducible non-genericHn(q)-modules are to be constructed is set up and, in particular, the full set of modules corresponding to two-part partitions is described. Plentiful examples are given.Presented at the 4th International Colloquium Quantum Groups and Integrable Systems, Prague, 22–24 June 1995. |
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