PageHeader : Funkcialaj Ekvacioj, 45 (2002) 187-208 Title : Convergence of Formal Solutions of Singular First Order Title : Nonlinear Partial Differential Equations of Totally Title : Characteristic Type AuthorInfo : By AuthorInfo : Akira SHIRAI AuthorInfo : (Nagoya University, Japan) section : 1. Introduction and main results section : 2. Example section : 3. Reduction of the equation section : 4. Preparation to prove Theorem 1 section : 5. Proof of Theorem 1 subsection : 5.1. Existence of the formal solution subsection : 5.2. Convergence of the formal solution section : 6. Solvability of the system (1. 13) subsection : A. Convergence of formal solutions of systems subsection : B. Analyticity of $\{u_{l}(x)\}$ which appeared in Remark 6 section : References