2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/151938The Replica Fourier Transform introduced previously is related to the standard definition of Fourier transforms over a group. Its use is illustrated by block-diagonalizing the eigenvalue equation of a four-replica Parisi matrix.4 pages. LaTeXDisordered Systems and Neural Networkstext