2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/8999The Euler equations governing a relativistic perfect fluid are put into symmetric hyperbolic form with dependent variables the fluid's specific entropy plus a generalized velocity vector equal to the fluid's unit relativistic velocity vector divided pointwise by the fluid's specific enthalpy.6 pagesAstrophysicsGeneral Relativity and Quantum Cosmologytext