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math.CO2022
Independence number of intersection graphs of axis-parallel segments
Marco Caoduro, Jana Cslovjecsek, Michał Pilipczuk +1
We prove that for any triangle-free intersection graph of axis-parallel segments in the plane, the independence number of this graph is at least . W…
math.CO2022★ 1 cited
Bounding generalized coloring numbers of planar graphs using coin models
Jesper Nederlof, Michał Pilipczuk, Karol Węgrzycki
We study Koebe orderings of planar graphs: vertex orderings obtained by modelling the graph as the intersection graph of pairwise internally-disjoint discs in the plane, and orderi…