Simultaneous partitions of measures by k-fans

被引:46
作者
Bárány, I
Matousek, J
机构
[1] Hungarian Acad Sci, Renyi Inst Math, H-1364 Budapest, Hungary
[2] UCL, Dept Math, London WC1E 6BT, England
[3] Charles Univ Prague, Dept Appl Math, CR-11800 Prague 1, Czech Republic
关键词
D O I
10.1007/s00454-001-0003-5
中图分类号
TP301 [理论、方法];
学科分类号
081202 ;
摘要
A k-fan is a point in the plane and k semilines emanating from it. Motivated by a neat question of Kaneko and Kano, we study equipartitions by k-fans of two or more probability measures in the plane, as well as partitions in other prescribed ratios. One of our results is: for any two measures there is a 4-fan such that one of its sectors contains two-fifths of both measures, and each of the the remaining three sectors contains one-fifth of both measures.
引用
收藏
页码:317 / 334
页数:18
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