I am a third year PhD student at LaBRI in Bordeaux. You might be looking for Clément Legrand – Lixon who studied at ENS Rennes at the same time as me.

I am broadly interested in combinatorics and graph theory, with a special fondness for reconfiguration and problems with a geometric flavor. In particular, a significant part of my work focuses on colorings and Kempe changes. My supervisors are Marthe Bonamy and Vincent Delecroix and I am a member of the teams Graphes et Optimisations and Combinatoire et Interactions.-
*Minimum Separator Reconfiguration*, arXiv:2307.07782, IPEC 23, with Guilherme C. M. Gomes, Reem Mahmoud, Amer E. Mouawad, Yoshio Okamoto, Vinicius F. dos Santos and Tom C. van der Zanden. -
*The structure of quasi-transitive graphs avoiding a minor with applications to the domino problem*, arXiv:2304.01823, Eurocomb23 and submitted to JCTb, with Louis Esperet and Ugo Giocanti. -
*On a recoloring version of Hadwiger's conjecture*, arXiv:2103.10684, Eurocomb23 and JCTb, with Marthe Bonamy, Marc Heinrich and Jonathan Narboni. *Strengthening a theorem of Meyniel*, arXiv:2201.07595, SIAM journal on discrete mathematics, with Quentin Deschamps, Carl Feghali, František Kardoš and Théo Pierron.*Kempe changes in degenerate graphs*, arXiv:2112.02313, European Journal of Combinatorics, with Marthe Bonamy and Vincent Delecroix.*Parameterized complexity of untangling knots*, arXiv:2111.05001, ICALP 2022 and SICOMP, with Ashutosh Rai and Martin Tancer.*Kempe changes in bounded treewidth graphs*, Eurocomb21, with Marthe Bonamy and Vincent Delecroix.

- Workshop in Edinburgh: Early Career Researchers in Combinatorics
- The structure of quasi-transitive graphs:
- Bratislava Algebraic Graph Theory seminar (May 24, 2024)
- Delft Discrete Mathematics and Optimization seminar (November 10, 2023)
- UCL Cominatorics seminar (October 16, 2023)
- Bordeaux Graph seminar (October 13, 2023)

- Invited speaker at Journées CALAMAR (January 16, 2024): Online edge coloring
- Random embedding of bounded degree trees:
- Bordeaux Graph seminar (January 19, 2023)
- Lyon Graph seminar (December 12, 2023)
- Grenoble Graph seminar (December 7, 2023)
- Journées Graphes et Algorithmique 2023 (November 22, 2023)

- Reconfiguration of
square-tiled surfaces:
- Invited speaker at Journées de Combinatoire de Bordeaux 2024 (February 6, 2024)
- Luxembourg Geometry seminar (November 13, 2023)
- Bordeaux Combinatorics seminar (October 23, 2023)
- Warwick Geometry and topology seminar (October 19, 2023)

- Recoloring version of Hadwiger's
conjecture:
- Amsterdam combinatorics and probability seminar (October 31, 2023)
- Eurocomb23
- Oxford combinatorial theory seminar (February 1, 2022)
- LSE combinatorics seminar (December 3, 2021)
- Journées Graphes et Algorithmique 2021 (November 18, 2021)
- Bordeaux Graph seminar (October 15, 2021)

- Strengthening a theorem of
Meyniel:
- Journées Graphes et Algorithmique 2022 (November 17, 2022)
- Bordeaux Graph seminar (November 25, 2022)
- Journées ANR Graph Reconfiguration (June 2022)

- Parametrized complexity of untangling knots:
- LaBRI's Junior seminar (October 26, 2022)
- ICALP 2022 (July 2, 2022)

- Kempe changes in bounded treewidth graphs: Eurocomb 2021
- Sparse Graph Coalition Workshop on Reconfiguration (May 2021)
- Kempe changes on \(\Delta\)-colorings: Workshop on Combinatorial Reconfiguration at ICALP 2021
- Journées ANR Graph Reconfiguration (June 2021)

- Networks (First year of IUT), 2024
- Human computer interaction in C# (Second year of IUT), 2024
- Office hours (First year of IUT), 2024
- Two lectures in the Master 2 Graph theory course: treewidth and graph minors, 2023
- Algorithms on trees and functional programming (Second year of Bachelor degree), 2023
- Combinatorics and probabilities (Second year of Bachelor degree), 2022
- Introduction to computer science (First year of Bachelor degree), 2021
- Colles en MP* et MPSI (weekly oral exams in mathematics) at Lycée du Parc, 2020