【摘要】 给出闭凸集的端子集结构性定理 .用仿射集支承揭示了端支承仿射集与端集的密切关系 .又探讨了曝点存在性问题 .从面对Krein -Milman关于端点的理论补充了新的内容更多还原

【Abstract】 The structural theorem of extremal subsets of a closed convex set is given. The closed relation of extremal supporting and extremal sets is given by using affine set supporting. Also an approach on the existence problem of exposed points in many subsets is presented. So, the well-known extreme point theory due to Krein-Milman has been supplied.更多还原