Short Bio:

I graduated from Ecole Normale Superieure in Paris in 2003, and completed my Ph.D. at Université Bordeaux in 2006 under the supervision of Mireille Bousquet-Melou. After a short postdoc at the Centre de Recerca Mathematica in Barcelona (supervised by Marc Noy and Dominic Welsh), I joined the Mathematics Department of Universite Paris-Saclay (Orsay) as a CNRS researcher in 2007. Two years later I took a leave from CNRS to visit the Massachusetts Institute of Technology as Instructor of Applied Mathematics (2009-2012). I joined Brandeis University in 2012, becoming Full Professor of Mathematics in 2020, and Department Chair in 2021. 

Research interests:

My main research interests are in combinatorics and probability. I study (and solve!) problems coming from mathematical physics, probability, algebra and computer science. 

In my research hours, I often try to find new ways to encode some complex mathematical structures (often geometric objects) by simpler ones (lattice paths, trees, permutations). These encodings help reveal hidden patterns and structures in the objects of interest and can be used to solve mathematical questions about them.

One of my favorite topics is the combinatorics of maps (graphs embedded in surfaces). Maps are important mathematical structures which appear in a wide variety of contexts: graph theory, statistical mechanics, random surface theory (2D quantum gravity), random matrix theory, representation theory, and computer science. 

Selected publications: (see the link at the top of the page to access all my publications)

• Percolation on triangulations: a bijective path to Liouville quantum gravity. Joint work with Xin Sun and Nina Holden.
  Memoirs of the American Mathematical Society , Vol. 289, Number 1440, pp 1-176 (2023)

• Universal Tutte Polynomial.  Joint work with Tamas Kalman and Alexander Postnikov.
  Advances in Mathematics, Vol. 402, 74 pages, (2022).

• Unified bijections for planar hypermaps with general cycle-length constraints. Joint work with Eric Fusy
  Annales de l'Institut Henri Poincare D. Vol. 7(1), pp. 75-164 (2020) 

• Deformations of the braid arrangement and Trees.
  Advances in Mathematics, Vol 335, pp. 466-518 (2018)

• Counting coloured planar maps: differential equations. Joint work with Mireille Bousquet-Mélou.
  Communications in Mathematical Physics, Volume 354, Issue 1, pp 31–84 (2017)