ABSTRACT

Proof. From Lemma 1 and continuous dependence of the solution of the heat conduction equation on the Dirichlet data, we know that

The trace theorem in Lions and Magenes (1968) states that the linear mapping

yo:ue H1, 112(Q)—>u e 11112' 114(E) is bounded. Namely,

II u I I

"NE) C11/4 11 H1, 112(Q) From the last inequality and the proposition, we can show that

tion of the corresponding integral equation of the second kind are presented in Costabel et al. (1987) and Onishi (1987, 1988b).