将单值映射的弧连通凸概念推广到了集值映射。
This paper extends the concept of arc connected convexness of single valued maps to set valued maps.
把单值边缘连续映射的概念推广到集值映射上，并且给出了集值边缘连续映射是连续映射与连通映射的条件。
The concept of peripherally continuous mappings is extended to set-value and the conditions are given which set-value peripherally continuous mappings are continuous and connected mappings.
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