2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/147568The relaxational modes and aging of the Glauber dynamics of the mean-field spin-glass model, SK model, are studied by a numerical diagonalization technique and Monte Carlo simulations. We found that the aging process of the model is understood as hierarchical growth of quasi-equilibrium domain in the phase-space.4 pages, LaTex, 3 eps figures. Revised version. To appear in Prog. Theor. Phys. supplement No.126 1997Disordered Systems and Neural Networkstext