Robert Hickingbotham gave an online talk on the relation between the tree-width and the Hadwiger number of circle graphs at the Virtual Discrete Math Colloquium

On February 15, 2023, Robert Hickingbotham from Monash University gave an online talk at the Virtual Discrete Math Colloquium on the relation between the tree-width and the Hadwiger number of circle graphs. The title of his talk was “Treewidth, Circle Graphs and Circular Drawings“.