On the Logarithmic Convexity in Thermoelasticity with Microtemperatures

Abstract

This article is concerned with the linear theory of thermoelasticity with microtemperatures. In a recent article we have used the logarithmic convexity method to investigate uniqueness, instability and structural stability. The results are restricted to the case when the constitutive coefficients k 1 and k 3 have the same signs. Here we prove that these results also hold when the coefficients k 1 and k 3 have opposite signs.