2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/147497A numerical approach to the study of equilibrium statistical properties of spin-1/2 XY chains is suggested. The approach is illustrated by the examining of influence of disorder on transverse dynamical susceptibility of spin-1/2 Ising chain in random transverse field.9 pages, LaTeXCondensed Mattertext