2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/160115Han recently discovered new hook length identities for binary trees. In this paper, we extend Han's identities to binomial families of trees. Moreover, we present a bijective proof of one of the identities for the family of ordered trees.6 pagesCombinatoricsGeneralizations of Han's Hook Length Identitiestext