2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/100530The carrier-density dependence of the photoemission spectrum of the Holstein many-polaron model is studied using cluster perturbation theory combined with an improved cluster diagonalization by Chebychev expansion.2 pages, 1 figure, final versionStrongly Correlated ElectronsMany-polaron problem by cluster perturbation theorytext