Geodesic normal forms and Hecke algebras for the complex reflection groups G(de, e, n)

Neaime G. Geodesic normal forms and Hecke algebras for the complex reflection groups G(de, e, n). JOURNAL OF PURE AND APPLIED ALGEBRA. Accepted;225(2): 106500.We establish geodesic normal forms for the general series of complex reflection groups G(de, e, n) by using the presentations of Corran-Picantin and Corran- Lee-Lee of G(e, e, n) and G(de, e, n) for d > 1, respectively. This requires the elaboration of a combinatorial technique in order to explicitly determine minimal word representatives of the elements of G(de, e, n). Using these geodesic normal forms, we construct natural bases for the Hecke algebras associated with the complex reflection groups G(e, e, n) and G(d, 1, n). As an application, we obtain a new proof of the BMR freeness conjecture for these groups. (C) 2020 Elsevier B.V. All rights reserved