2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/17310The correlation functions are calculated for the three - dimensional Z_2 electrodynamics for the particular values of the ineraction energies and for the free boundary conditions.13 pagesCondensed MatterThe Three - Dimensional Z_2 Electrodynamics and the Two - Dimensional Ising Modeltext