In this paper we investigate a porous thermoelastic system where the heat conduction is given by Cattaneo’s law and where the energy associated with the solution is not necessary positive definite (  μξ=b 2       μ  ξ  =   b  2         ). We introduce a stability number  χ  and prove an exponential (resp. polynomial) decay result depending on  χ .
['Abdelfeteh Fareh', 'Salim A. Messaoudi']
Energy decay for a porous thermoelastic system with thermoelasticity of second sound and with a non-necessary positive definite energy