PageHeader : Funkcialaj Ekvacioj, 29 (1986) 219-236 Title : Asymptotic Behavior of Periodic Systems Generated Title : by Time-Dependent Subdifferential Operators AuthorInfo : By AuthorInfo : Nobuyuki KENMOCHI and Mitsuharu OTANI AuthorInfo : (Chiba University and Tokai University, Japan) AuthorInfo : Dedicated to Professor Isao Miyadera on the occasion of his 60th birthday section : Introduction. section : 1. Main results section : 2. Some lemmas section : 3. Proofs of main theorem section : 4. Applications section : References