ABSTRACT

In this section, we present the basic definitions and theorems that are used in the asymptotic analysis, which can be found in any reference text (see for example [1, 246]).

Definition F.1 A complex function f(z), defined over a region <, is said to be analytic at a point z0 ∈ < if, for some open disc centered at z0 and contained in <, f(z) can be represented by a convergent power series expansion

f(z) = ∑ n≥0

cn(z − z0)n.