Cones of weighted quasi-metrics, weighted quasi-hypermetrics and of oriented cuts

Details Cones of weighted quasi-metrics, weighted quasi-hypermetrics and of oriented cuts Cones of weighted quasi-metrics, weighted quasi-hypermetrics and of oriented cuts

2012-01-05

arxiv.org/abs/1201.1099v1

Mathematics

Metric Geometry

Scientific paper

We show that the cone of weighted n-point quasi-metrics WQMet_n, the cone of weighted quasi-hypermetrics WHyp_n and the cone of oriented cuts OCut_n are projec- tions along an extreme ray of the metric cone Metn+1, of the hypermetric cone Hypn+1 and of the cut cone Cut_{n+1}, respectively. This projection is such that if one knows all faces of an original cone then one knows all faces of the projected cone.

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