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Burling graphs in graphs with large chromatic number
Tara Abrishami, Marcin Briański, James Davies +4
A graph class is -bounded if the only way to force large chromatic number in graphs from the class is by forming a large clique. In the 1970s, Erdős conjectured that intersectio…
math.CO2025
On coarse tree decompositions and coarse balanced separators
Tara Abrishami, Jadwiga Czyżewska, Kacper Kluk +3
It is known that there is a linear dependence between the treewidth of a graph and its balanced separator number: the smallest integer such that for every weighing of the verti…