2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/169484A simple equation of state for hard disks on the hyperbolic plane is proposed. It yields the exact second virial coefficient and contains a pole at the highest possible packing. A comparison with another very recent theoretical proposal and simulation data is presented.3 pages, 1 figureSoft Condensed MatterStatistical MechanicsChemical Physicstext