2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/221917We discuss renorming properties of the dual of a James tree space JT. We present examples of weakly Lindelof determined JT such that JT* admits neither strictly convex nor Kadec renorming and of weakly compactly generated JT such that JT* does not admit Kadec renorming although it is strictly convexifiable.Functional Analysis46B26text