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Density of a family of linear varieties. (English) Zbl 1123.53038

Summary: The measurability of the family, made up of the family of plane pairs and the family of lines in 3-dimensional space \(A_3\), is stated and its density is given.

MSC:

53C65 Integral geometry
28A75 Length, area, volume, other geometric measure theory
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References:

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