Ursula Hamenstädt

Ursula Hamenstädt (born 15 January 1961) is a German mathematician who works as a professor at the University of Bonn. Her primary research subject is differential geometry.

Hamenstädt earned her Ph.D. from the University of Bonn in 1986, under the supervision of Wilhelm Klingenberg. She was then a Miller Research Fellow at the University of California, Berkeley and an assistant professor at the California Institute of Technology before returning to Bonn as a faculty member in 1990.

Hamenstädt was an invited speaker at the International Congress of Mathematicians in 2010. In 2012 she was elected to the German Academy of Sciences Leopoldina, and in the same year she became one of the inaugural fellows of the American Mathematical Society.

• Hamenstädt, Ursula (2008). "Geometry of the mapping class groups I: Boundary amenability". Inventiones Mathematicae. 175 (3): 545–609. arXiv:math/0510116. doi:10.1007/s00222-008-0158-2. ISSN 0020-9910. 
• Hamenstädt, Ursula (1989). "A new description of the Bowen–Margulis measure". Ergodic Theory and Dynamical Systems. 9 (03): 455–464. doi:10.1017/S0143385700005095. ISSN 1469-4417. 
• Hamenstädt, Ursula (1990). "Some regularity theorems for Carnot–Carathéodory metrics". Journal of Differential Geometry. 32 (3): 819–850. ISSN 0022-040X.