2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/71843We present several direct bijections between different combinatorial interpretations of the Littlewood-Richardson coefficients. The bijections are defined by explicit linear maps which have other applications.15 pages, 9 figures. To be published in the special issue on "Combinatorics and Representation Theory" of the European Journal of CombinatoricsCombinatoricsRepresentation Theory05E10; 20C30text