2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/16222The model under consideration is a two-dimensional two-component plasma, stable against collapse for the dimensionless coupling constant $β<2$. The combination of a technique of renormalized Mayer expansion with the mapping onto the sine-Gordon theory provides the full thermodynamics of the plasma in the whole stability range of $β$. The explicit forms of the density-fugacity relationship and of the specific heat (at constant volume) per particle are presented.23 pagesStatistical Mechanicstext