Robert Hickingbotham, Treewidth, Circle Graphs and Circular Drawings

Zoom ID: 869 4632 6610 (ibsdimag)

A circle graph is an intersection graph of a set of chords of a circle. In this talk, I will describe the unavoidable induced subgraphs of circle graphs with large treewidth. This includes examples that are far from the `usual suspects'. Our results imply that treewidth and Hadwiger number are linearly tied on the class

Daniel Altman, TBA

Zoom ID: 224 221 2686 (ibsecopro)

Jie Han, TBA

Zoom ID: 224 221 2686 (ibsecopro)
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