Fanny Kassel

Fanny Kassel is a CNRS Research Director at the Institut des Hautes Études Scientifiques (IHES). Her research focuses on geometric, dynamical, and spectral properties of discrete subgroups of Lie groups, particularly their actions on homogeneous spaces, geometric structures on manifolds, and connections to higher Teichmüller-Thurston theory. She has made significant contributions to pseudo-Riemannian homogeneous spaces and Anosov representations.

Research Themes:

• Discrete subgroups of Lie groups
• Geometric group theory
• Anosov representations
• Higher Teichmüller theory
• Pseudo-Riemannian geometry

Article Trends: Her recent work spans convex projective geometry, spectral analysis on non-Riemannian spaces, and dynamics of discrete group actions. Papers emphasize properness criteria for group actions, combination theorems, and spectral gaps in hyperbolic and pseudo-Riemannian contexts, often involving collaborations with experts like Jeff Danciger, François Guéritaud, and Toshiyuki Kobayashi.

Scientific Honors:

• Mathematics Medal, French Academy of Sciences (2024)
• CNRS Bronze Medal (2015)
• ERC Starting Grant (2016)
• Invited speaker at ICM Rio de Janeiro (2018)