Donato, Andrea (2000) On a supplementary conservation law for the energy equation in a rigid heat conductor. Memorie scientifiche di Andrea Donato. pp. 235-243.
We consider a rigid heat conductor with specified constitutive equations and show that the internal energy equation may be written in the form of a symmetric and conservative hyperbolic system of first order quasi-linear equations for wich the Cauchy problem is well-posed.Moreover,such a system is useful to study shocks.Several particular cases are examined
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