在本論文中,我們介紹並探討有關 -convexity and -quasiconvexity這兩類的模糊集合和模糊函數,並且建立它們的特徵定理。另外我們提出 -convex and -quasiconvex fuzzy process的觀念和相關性質。
The concept of -convexity and -quasiconvexity for fuzzy sets and fuzzy mappings are introduced and studied. Characterization theorems for these fuzzy sets and fuzzy mappings are established. In addition, the concept of -convex and -quasiconvex fuzzy processes are proposed. Some basic properties for these fuzzy processes are presented.