2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/100238We compute the list of all minimal 2-infinite diagrams, which are cluster algebraic analogues of extended Dynkin graphs.Sections 1 and 3 expanded, minor changes in other sections. 94 pages, 97 figuresCombinatoricsRings and Algebras14M99text