33 research outputs found

    Super Schur-Weyl reciprocity for cyclotomic Hecke algebras

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    Let Uq(g)U_q(\mathfrak{g}) be the quantized superalgebra of g=gl(k1βˆ£β„“1)βŠ•β‹―βŠ•gl(kmβˆ£β„“m)\mathfrak{g}=\mathfrak{gl}(k_1|\ell_1)\oplus\cdots\oplus\mathfrak{gl}(k_m|\ell_m) and Hm,n(q,Q)H_{m,n}(q,\mathbf{Q}) the cyclotomic Hecke algebra of type G(m,1,n)G(m,1,n). We define a right Hm,n(q,Q)H_{m,n}(q,\mathbf{Q})-action on the nn-fold tensor (super)space of the vector representation of Uq(g)U_q(\mathfrak{g}) and prove the Schur--Weyl reciprocity between U_q(\mathfak{g}) and Hm,n(q,Q)H_{m,n}(q,\mathbf{Q}).Comment: Title changed, Some typos fixed and other minor change

    Cyclotomic qq-Schur superalgebras

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    The paper aims to introduce the cyclotomic qq-Schur superalgebra via the permutation supermodules of the cyclotomic Hekce algebra and investigate its structure. In particular, we show that the cyclotomic qq-Schur superalgebra is a cellular superalgebra and establish the Schur-Weyl duality between the cyclotomic Hecke algebra and the cyclotomic qq-Schur superalgebra.Comment: 14 page
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