2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/110172In this paper we prove the Dipper-James conjecture that the centre of the Iwahori-Hecke algebra of type A is the set of symmetric polynomials in the Jucys-Murphy operators.27 pages. To appear J. AlgebraRepresentation TheoryCombinatorics20C08; 05E05text