Sets meeting isometric copies of the lattice Z(2) in exactly one point
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资源简介：
The construction of a subset S of ℝ(2) such that each isometric copy of ℤ(2) (the lattice points in the plane) meets S in exactly one point is indicated. This provides a positive answer to a problem of H. Steinhaus [Sierpiński, W. (1958) Fund. Math. 46, 191–194].
创建时间：
2002-12-04
