2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/78327Primitive equivalence of graphs and matrices was used by Enomoto, Fujii and Watatani to classify Cuntz-Krieger algebras of 3x3 irreducible matrices. In this paper it is shown that the definition of primitive equivalence can be simplified using primitive transfers of matrices that involve only two rows of the matrix.5 pages, uses XY-picFunctional AnalysisCombinatorics46L05, 05C20text