PageHeader : Funkcialaj Ekvacioj, 17 (1974), 25-29 Title : On Start Sets and Negative Prolongational Limit Title : Sets in Semidynamical Systems AuthorInfo : By K. M. DAS and S. S. Lakshmi* AuthorInfo : (Indian Institute of Technology) section : 1. Introduction. section : 2. Start Sets. section : 3. Negative Prolongational Limit Sets. section : References