Christian Ketterer

Christian Ketterer is a Substitute Professor for Differential Geometry at the Department of Mathematics, Albert-Ludwigs-Universität Freiburg. His research focuses on geometric analysis, differential geometry, and synthetic curvature bounds, with particular emphasis on RCD spaces, scalar curvature, geometric flows, and mathematical physics. He obtained his PhD from the University of Bonn in 2014 under Karl-Theodor Sturm's supervision.

His work explores advanced geometric structures, including Alexandrov spaces, geometric measure theory, and curvature-dimension conditions. Recent research highlights include studies on rigidity in non-negatively curved spaces, spectral gap properties, and stability of metric measure spaces. Ketterer's contributions bridge geometric analysis with optimal transport theory and synthetic Ricci curvature bounds.

Publications span topics like RCD space structures, inscribed radius bounds, and Heintze-Karcher inequalities in metric measure spaces. He collaborates internationally, with notable co-authors including Vitali Kapovitch and Andrea Mondino. No awards are explicitly listed, but his work is widely cited in geometric analysis and related fields.