PageHeader : Funkcialaj Ekvacioj, 36 (1993) 581-600 Title : A Normalization of a Nonlinear $/\mathrm{i}$ -System Not Satisfying Title : the Poincare Condition at an Irregular Singularity AuthorInfo : By AuthorInfo : Toshiyuki KOITABASHI AuthorInfo : (Kobe University, Japan) section : §1. Introduction section : §2. The construction of the formal transformation $T$ section : §3. Sketch of the proof of Theorem section : §4. Determination of sectorial domain $\Psi$ and path of integration $\gamma$ section : §5. The stability of the domain $\ovalbox{\tt\small REJECT}$ which is a deformation of $D$ section : §6. Proof of Fundamental lemma section : References