Ursula Hamenstädt

Short description: German mathematician

Ursula Hamenstädt, Berkeley 1986

Ursula Hamenstädt (born 15 January 1961) is a German mathematician who works as a professor at the University of Bonn.[1] Her primary research subject is differential geometry.

## Contents

* 1 Education and career
* 2 Honors
* 3 Selected publications
* 4 References
* 5 External links

## Education and career

Hamenstädt earned her PhD from the University of Bonn in 1986, under the supervision of Wilhelm Klingenberg. Her dissertation, Zur Theorie der Carnot-Caratheodory Metriken und ihren Anwendungen [The theory of Carnot–Caratheodory metrics and their applications], concerned the theory of sub-Riemannian manifolds.[2]

After completing her doctorate, she became a Miller Research Fellow at the University of California, Berkeley and then an assistant professor at the California Institute of Technology before returning to Bonn as a faculty member in 1990.[1]

## Honors

Hamenstädt was an invited speaker at the International Congress of Mathematicians in 2010.[3] In 2012 she was elected to the German Academy of Sciences Leopoldina,[4] and in the same year she became one of the inaugural fellows of the American Mathematical Society.[5] She was the Emmy Noether Lecturer of the German Mathematical Society in 2017.[6]

## Selected publications

* Hamenstädt, Ursula (2008). "Geometry of the mapping class groups I: Boundary amenability" (in en). Inventiones Mathematicae 175 (3): 545–609. doi:10.1007/s00222-008-0158-2. ISSN 0020-9910. Bibcode: 2009InMat.175..545H.
* Hamenstädt, Ursula (1989). "A new description of the Bowen–Margulis measure". Ergodic Theory and Dynamical Systems 9 (3): 455–464. doi:10.1017/S0143385700005095. ISSN 1469-4417.
* Hamenstädt, Ursula (1990). "Some regularity theorems for Carnot–Carathéodory metrics" (in EN). Journal of Differential Geometry 32 (3): 819–850. doi:10.4310/jdg/1214445536. ISSN 0022-040X.

## References

1. ↑ 1.0 1.1 Faculty profile, University of Bonn, retrieved 18 December 2014.
2. ↑ Ursula Hamenstädt at the Mathematics Genealogy Project
3. ↑ Hamenstädt, Ursula (2010), "Actions of the mapping class group", Proceedings of the International Congress of Mathematicians. Volume II, New Delhi: Hindustan Book Agency, pp. 1002–1021, http://www.mathunion.org/ICM/ICM2010.2/Main/icm2010.2.1002.1021.pdf .
4. ↑ List of members: Prof. Dr. Ursula Hamenstädt, Leopoldina, retrieved 18 December 2014.
5. ↑ List of Fellows of the American Mathematical Society, retrieved 18 December 2014.
6. ↑ (in German) Preise und Auszeichnungen, German Mathematical Society, https://www.mathematik.de/dmv/preise-auszeichnungen, retrieved 5 November 2018

## External links

* Home page

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