Topology of automorphism groups of parabolic geometries, with Charles Frances pdf Geometry & Topology 23 no. 1 (2019) 135--169.
Nonstationary smooth geometric structures for contracting measurable cocycles pdf Ergodic Theory and Dynamical Systems 39 no. 2 (2019)
392--424
(published online in 2017 here)
Strongly essential flows on irreducible parabolic geometries, with Katharina Neusser pdf Transactions of the American Mathematical Society 368 no. 11 (2016) 8079--8110
Quasihomogeneous three-dimensional real analytic Lorentz metrics do not exist, with Sorin Dumitrescu pdf Geometriae Dedicata179 no. 1 (2015) 229-253
Essential Killing fields of parabolic geometries: projective
and conformal structures, with Andreas Čap pdfor in theESI
Preprint Series (number 2393) Central European Journal of Mathematics11 no. 12
(2013) 2053-2061
Formes normales pour les champs conformes pseudo-riemanniens [Normal forms for pseudo-Riemannian conformal vector fields], with Charles Frances dvipdfps Bulletin de la Société Mathématique de France141 no. 3 (2013), 377-421
A Frobenius theorem for Cartan geometries, with applications dvipdfps L'Enseignement Mathématique (Sér. II)57
no. 1-2 (2011) 57-89
Erratum: There is an error in the proof of Theorem 6.3, the
Frobenius theorem for Killing fields around regular points in the
smooth case. Pecastaing has an alternative
proof of this result: On two theorems about local automorphisms of geometric structures, Ann. Inst. Fourier (Grenoble)66 no. 1 (2016) 175-208, arxiv.org/abs/1402.5048. There are no known issues with
the real-analtyic results that constitute the bulk of my paper.
Conformal actions of nilpotent groups on pseudo-Riemannian
manifolds, with Charles Frances dvipdfps Duke Mathematical Journal153 no. 3 (2010) 511-550
Dynamics on Lorentz manifolds, lecture notes in English from the École de Géométrie Différentielle et Systèmes Dynamiques, ENSET Oran, Algeria, November 4-9, 2006 dvipdfps
French version, translated by D. Smai, in Algèbre, analyse, et dynamique pour la géométrie: Actes des Écoles de Géométrie et Dynamique au Maghreb 2004-2007 (eds. T. Barbot, H. Belbachir, S. Mehdi, D. Smai, R. Souam) Paris: Ellipses (2010) 307-342
An embedding theorem for automorphism groups of Cartan
geometries, with Uri Bader
and Charles Frances dvipdfps Geometric and Functional Analysis19 no. 2 (2009) 333-355
Compact Lorentz manifolds with local symmetry
University of Chicago dissertation, 2006 dvipdfps
article version
dvipdfps Journal of Differential Geometry81 no. 2 (2009) 355-390
A primer on the (2+1) Einstein universe, with Thierry Barbot,
Virginie Charette, Todd Drumm, and
William Goldman dvipdfps
in Recent developments in pseudo-Riemannian Geometry:
Proceedings of the Special Semester "Geometry of pseudo-Riemannian
manifolds with application to physics", Erwin Schrödinger Insitute,
Vienna, Sept - Dec 2005 (eds. D. Alekseevsky and H. Baum) in
ESI-Series on Mathematics and Physics
Actions of noncompact semisimple groups on Lorentz manifolds, with Mohamed Deffaf and Abdelghani Zeghib dvipdfps Geometric and Functional Analysis18 no. 2 (2008) 463-488
Isometric actions of Heisenberg groups on compact Lorentz manifolds dvipdfps Geometriae Dedicata126 no. 1 (2007) 131-154