K-set (geometry)

n^{2}/K} ）條不重合的直線，其中 C {\displaystyle C} 和 K {\displaystyle K} 為正常數。 塔馬爾·戴伊（英语：Tamal Dey）類似地證明了幾何k-集（英语：K-set (geometry)）數的上界。 先利用歐拉公式證明以下初步估計：若圖G恰有n個頂點和e條邊，則

T. Almost optimal set covers in finite VC-dimension. Discrete and Computational Geometry（英语：Discrete and Computational Geometry）. 1995, 14 (4): 463–479

K. T. Leung, Doris L. C. Chen, Elementary Set Theory, Part I/II, Hong Kong University Press (1965) K. T. Leung, Linear Algebra and Geometry, Hong

分體虛無主義 Mereotopology Plural quantification Simples Whitehead's point-free geometry （英文） Bunt, Harry, 1985. Mass terms and model-theoretic semantics. Cambridge

z k − w k | < r k ,  for all  k = 1 , … , n } . {\displaystyle \{w=(w_{1},w_{2},\dots ,w_{n})\in {\mathbf {C} }^{n}\mid \vert z_{k}-w_{k}\vert <r_{k},{\mbox{