Intersection formulae for the kernel of
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J. Cel
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Article
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1991
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Springer
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English
โ 468 KB
A subset S of Euclidean space is called a cone if it is the union of a set of halflines having the same endpoint called the apex of the cone, and the set of all such apices is denoted I~y ker R S and called the R-kernel or, when it does not lead to any confusion with the kernel of a starshaped set,