♠ Discrete Morse theory for the collapsibility of supremum sections.
With Balthazar Bauer.
ArXiv version (including complete proofs)
♠ Planar graphs as L-intersection or L-contact graphs.
With Daniel Gonçalves and Claire Pennarun.
HAL version & ArXiv version
♠ Dushnik-Miller dimension of TD-Delaunay complexes.
With Daniel Gonçalves.