I work in the Discrete Mathematics Research Group of the School of Mathematics at Monash University in Melbourne, Australia. I am also co-Director of the Mathematical Research Institute MATRIX. My research interests lie in discrete mathematics and theoretical computer science, especially structural graph theory, extremal graph theory, geometric graph theory, graph colouring, graph drawing, and combinatorial geometry.

#### News

- New paper The structure of
k -planar graphs with Vida Dujmović and Pat Morin, July 2019 - New paper A lower bound on the average degree forcing a minor with Sergey Norin, Bruce Reed and Andrew Thomason, July 2019
- New paper The size Ramsey number of graphs with bounded treewidth with three new collaborators Nina Kamčev, Anita Liebenau, Liana Yepremyan, June 2019
- New papers Clustered graph coloring and layered treewidth and Clustered coloring of graphs excluding a minor or odd minor and Clustered variants of Hajós' conjecture with Chun-Hung Liu, May / August 2019.
- My PhD students Kevin Hendrey and Tim Wilson graduated, 22nd May 2019.
- New paper Planar graphs have bounded nonrepetitive chromatic number with Vida Dujmović, Louis Esperet, Gwenaël Joret, Bartosz Walczak, April 2019.
- New paper Planar graphs have bounded queue-number with Vida Dujmović, Gwenaël Joret, Piotr Micek, Pat Morin and Torsten Ueckerdt, April 2019 (accepted to FOCS 2019)

#### Events

- New Perspectives in Colouring and Structure, Banff, 15-20 March, 2020
- Australasian Conference on Combinatorial Mathematics and Combinatorial Computing (42ACCMCC), UNSW Sydney, 9-13 December 2019
- 63nd Annual Meeting of the Australian Mathematical Society, Monash University, 3-6 December 2019
- Structural Graph Theory Downunder, MATRIX, 25 November - 1 December 2019
- WATERloo COLORing Conference, September 2019