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| 一个平面点集的问题 | |
| 引用本文： | 吴树宏. 一个平面点集的问题[J]. 曲阜师范大学学报, 1996, 22(4): 9-11 |
| 作者姓名： | 吴树宏 |
| 作者单位： | 湖北省经济管理干部学院 |
| 摘 要： | 平面上有限点集Ｓ与半平面的交称为Ｓ的半空间，恰包含ｋ个点的半空间称为Ｓ的ｋ－子集，Ｓ的ｋ－子集的个数记作ｆｋ（Ｓ），令ｆｋ，ｎ＝ｍａｘｆｋ｜Ｓ｜＝Ｎ（Ｓ），对ｋ〈ｎ／２本文求得ｆｋ，ｎ。 |
| 关 键 词： | 平面点集 半空间 k－子集 |
A PROBLEM ON SET OF POINTS IN THE PLANE |
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| Wu Shuhong. A PROBLEM ON SET OF POINTS IN THE PLANE[J]. Journal of Qufu Normal University(Natural Science), 1996, 22(4): 9-11 | |
| Authors: | Wu Shuhong |
| Abstract: | For S a set of n point of E 2, the intersection of S and a half_plane is called a semispace of S , A semispace of S of cardinality k is called a k_ subset of S. The number of k_ subsets of S is denoted by f k(S) , Let f k,n = max |S|=nf k (S). In this paper it is proved that f k,n =2k-1kn] for k |
| Keywords: | set of points in the plane semispace k _subet |
| 本文献已被 CNKI 维普 等数据库收录！ | |