2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/215361Replaced by the new article arXiv:0901.1425 because the Jüttner distribution has been revised and the second author been removed.This paper is withdrawn because remarks on the Jüttner distribution has been revised and appears as new article arXiv:0901.1425Statistical MechanicsOther Condensed Mattertext