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math.CO2020
Universal Geometric Graphs
Fabrizio Frati, Michael Hoffmann, Csaba D. Tóth
We introduce and study the problem of constructing geometric graphs that have few vertices and edges and that are universal for planar graphs or for some sub-class of planar graphs…
math.CO2019
Minimal Representations of Order Types by Geometric Graphs
Oswin Aichholzer, Martin Balko, Michael Hoffmann +8
In order to have a compact visualization of the order type of a given point set S, we are interested in geometric graphs on S with few edges that unambiguously display the order ty…