Quasi-isometric embeddings of non-uniform lattices, joint with David Fisher, to appear on Commentarii Mathematici Helvetici, pdf.

Hyperbolic rank rigidity for manifolds of 1/4-pinched negative curvature, joint with Christopher Connell and Ralf Spatzier, Ergodic Theory and Dynamical Systems, 2018, pdf.

Rigidity of warped cones and coarse geometry of expanders, joint with David Fisher and Wouter van Limbeek, Advances in Mathematics, 2019, pdf.

Quasi-isometric embeddings of symmetric spaces and buildings: reducible case, submitted, pdf.

In progress:

Hyperbolic rank rigidity for perturbations of locally symmetric spaces, joint with Christopher Connell and Ralf Spatzier.

Marked length spectrum preserving embeddings, joint with Shi Wang.

Property RD for groups acting on Euclidean buildings, joint with Adrien Boyer.

Recent Talks

Topology seminar, University of Oxford, Oxford, UK, February 2019.

Geometric Topology seminar, Columbia University, New York, September 2018.

Oberwolfach workshop, Oberwolfach, Germany, April 2018.

Geometry seminar, University of Michigan, Ann Arbor, March 2018.