Dilation, smoothed distance, and minimization diagrams of convex functions

Matthew Dickerson David Eppstein Kevin A. Wortman Dilation, smoothed distance, and minimization diagrams of convex functions http://arxiv.org/abs/0812.0607 2008 CoRR abs/0812.0607 db/journals/corr/corr0812.html#abs-0812-0607 informal publication