Lp-resolvent estimates and time decay for generalized thermoelastic plate equations

R. Denk, R. Racke

Abstract. We consider the Cauchy problem for a coupled system generalizing the thermoelastic plate equations. First we prove resolvent estimates for the stationary operator and conclude the analyticity of the associated semigroup in Lp-spaces for certain values of the parameters of the system; here the Newton polygon method is used. Then we prove decay rates of the Lq-norms of solutions, q>=2, as time tends to infinity.

Electron. J. Differ. Equ. 2006 (2006), No. 48, pp. 1-16.

The paper is available here: pdf