Analytic Extension of the Trace Associated with Elliptic Boundary Problems

This paper extends to boundary problems the analysis of the powers of an elliptic system of operators given in [6]. The results depend on the analysis of the resolvent given in [7], and this paper is a continuation of that one. We will think of that earlier paper as part I of this one, and not repeat definitions, theorems, notations, and so on here, but simply refer to the earlier paper. For instance, formula 1(29) refers to formula 29 of [7],