On Two Conjectures of Steinhaus
On Two Conjectures of Steinhaus
复制标题
论斯坦豪斯的两个猜想
DOI:
10.1023/a:1005265910153
复制
发表时间:
2000
影响因子:
0.5
通讯作者:
Costin Vîlcu
中科院分区:
文献类型:
--
作者:
Costin Vîlcu
AbstractWe disprove two conjectures of H. Steinhaus by showing that: (1) there is a convex surface S such that for any point x on S and any point y in the set Fx of farthest points from x, there are at most two segments from x to y; (2) the properties
$$\left| {Fx} \right| = 1$$
and
$${F_{F_x } = x}$$
do not characterize the sphere.