80 research outputs found

    An algorithm for the computation of the decomposition matrices for Ariki-Koike algebras

    Get PDF
    We give a purely combinatorial algorithm for the computation of the decomposition matrices for Ariki-Koike algebras when the parameters are powers of the same root of unity. It generalizes the LLT algorithm

    Crystal graphs of higher level q-deformed Fock spaces, Lusztig a-values and Ariki-Koike algebras

    Full text link
    We show that the different labelings of the crystal graph for irreducible highest weight U_q(sl^_e)\mathcal{U}\_q (\hat{\mathfrak{sl}}\_e)-modules lead to different labelings of the simple modules for non semisimple Ariki-Koike algebras by using Lusztig aa-values

    JMMO Fock space and Geck-Rouquier classification of simple modules for Hecke algebras

    Full text link
    This paper is a survey on the representation theory of Hecke algebras, Ariki-Koike algebras and connections with quantum group

    Cellular structures on Hecke algebras of type B

    Get PDF
    The aim of this paper is to gather and (try to) unify several approaches for the modular representation theory of Hecke algebras of type BB. We attempt to explain the connections between Geck's cellular structures (coming from Kazhdan-Lusztig theory with unequal parameters) and Ariki's Theorem on the canonical basis of the Fock spaces
    • …
    corecore