PageHeader : Funkcialaj Ekvacioj, 38 (1995) 217-232 Title : Remarks on Quadratic Nonlinear Schrodinger Equations AuthorInfo : By AuthorInfo : T. OZAWA AuthorInfo : (Hokkaido University, Japan) section : 1. Introduction section : 2. Proof of Theorem 1 section : 3. Proof of Theorem 2 section : 4. Proof of Theorem 3 section : References