G. AMENDOLA e A. MANES
Un'osservazione sull'equazione di continuitą nello studio delle varietą caratteritiche
Received: 1 June 1993
AMS Classification: 76A10
Abstract In this note we show that from the equation of mass conservation it follows that, in studying the characteristic manifolds of the linear theory of thermoelasticity and of the mechanics of viscous fluids, we can have a fixed wave-front in these continua.