Cellularity of cyclotomic Yokonuma-Hecke algebras

preprint2016arXivOpen access

Abstract

We first give a direct proof of a basis theorem for the cyclotomic Yokonuma-Hecke algebra Yr,nd(q).Y_{r,n}^{d}(q). Our approach follows Kleshchev's, which does not use the representation theory of Yr,nd(q),Y_{r,n}^{d}(q), and so it is very different from that of [ChP2]. We also present two applications. Then we prove that the cyclotomic Yokonuma-Hecke algebra Yr,nd(q)Y_{r,n}^{d}(q) is cellular by constructing an explicit cellular basis, and show that the Jucys-Murphy elements for Yr,nd(q)Y_{r,n}^{d}(q) are JM-elements in the abstract sense. In the appendix, we shall develop the fusion procedure for Yr,nd(q).Y_{r,n}^{d}(q).

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