Isotonicity of the projection onto the monotone cone

A. B. Németh; S. Z. Németh

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arXiv · 1201.4677

Isotonicity of the projection onto the monotone cone

A. B. Németh·S. Z. Németh

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Abstract

A wedge (i.e., a closed nonempty set in the Euclidean space stable under addition and multiplication with non-negative scalars) induces by a standard way a semi-order (a reflexive and transitive binary relation) in the space. The wedges admitting isotone metric projection with respect to the semi-order induced by them are characterized. The obtained result is used to show that the monotone wedge (called monotone cone in regression theory) admits isotone projection.

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A. B. Németh, S. Z. Németh. 2012-01-23. Isotonicity of the projection onto the monotone cone. https://arxiv.org/abs/1201.4677

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