PageHeader : Funkcialaj Ekvacioj, 11 (1968), 185-195 Title : Subfunctions for Ordinary Differential Equations IV AuthorInfo : By Kiyoshi AƒÈo AuthorInfo : (University of Tokyo) section : Introduction. section : 1. Fundamental Assumptions. section : 2. Problem (2). section : 3. Problem (3). section : 4. Proof of Lemma 2. section : 5. Proof of Theorem 2 (continued). section : 6. Uniqueness and Unique Existence Theorems. section : 7. Existence of the functions $\omega\underline{(x}$ ) and $\overline{\omega}(x)$ . section : Appendix section : References