PageHeader : Funkcialaj Ekvacioj 18 (1975) 227-244 Title : On the Global Classical Solutions of Title : Nonlinear Wave Equations AuthorInfo : By Yukiyoshi EBIHARA AuthorInfo : (Fukuoka University, Japan) section : 0. Introduction section : 1. Lemmas and Theorems section : 2. Proofs of the Theorems and Examples subsection : (A) Proof of the Theorem 1. subsection : (B) Proof of the Theorem 2. subsection : (C) Proof of the Theorem 3. subsection : (D) Proof of the Theorem 4. section : 3. Generalization section : References