Christiane Tretter

Christiane Tretter
AwardsRichard von Mises Prize
Academic background
Alma materUniversity of Regensburg
ThesisAsymptotische Randbedingungen für Entwicklungssätze bei Randeigenwertproblemen zu mit -abhängigen Randbedingungen (1992)
Reinhard Mennicken
Academic work
DisciplineMathematics
Sub-discipline
Mathematical physics
InstitutionsUniversity of Bern
University of Bremen
University of Leicester
Doctoral students
Sabine Bögli
Main interests
Differential operators
Spectral theory

Christiane Tretter is a German mathematician and mathematical physicist who works as a professor in the Mathematical Institute (MAI) of the University of Bern in Switzerland, and as co-director of the institute.[1] Her research area in applied analysis includes, in particular, spectral theory and differential operators.

Education and career

Tretter studied mathematics, with a minor in physics, at the University of Regensburg, earning a diploma in 1989, a Ph.D. in 1992, and a habilitation in 1998. Her doctoral dissertation, Asymptotische Randbedingungen für Entwicklungssätze bei Randeigenwertproblemen zu mit -abhängigen Randbedingungen, was supervised by Reinhard Mennicken.[2]

She became a lecturer at the University of Leicester in 2000, moved to the University of Bremen as a professor in 2002, and took her present position as full professor at the University of Bern in 2006.

Since 2008 she has been editor-in-chief of the journal Integral Equations and Operator Theory.[3]. Having served as vice-president of the Swiss Mathematical Society, SMS, in 2024/25, she was elected president of SMS in 2026.[4]

Books

Tretter is the author of two mathematical monographs, Spectral Theory of Block Operator Matrices and Applications (2008)[5] and On Lambda-Nonlinear-Boundary-Eigenvalue-Problems (1993),[6] and of two textbooks in analysis[7][8].

Recognition

Tretter was awarded the Richard von Mises Prize of the Gesellschaft für Angewandte Mathematik und Mechanik, GAMM, in 1995.[9] She became honorary member of the Swedish Mathematical Society in 2025[10].

References

  1. ↑ "Prof. Dr. Christiane Tretter, co-director of the Institute", About us, Mathematical Institute of the University of Bern, 31 May 2018, retrieved 27 February 2020
  2. ↑ Christiane Tretter at the Mathematics Genealogy Project
  3. ↑ Integral Equations and Operator Theory, IEOT, Birkhaeuser Verlag, 1978, retrieved 24 April 2026
  4. ↑ Swiss Mathematical Society, SMS, Steering Committee, January 2026, retrieved 23 April 2026
  5. ↑ Reviews of Spectral Theory of Block Operator Matrices and Applications:
  6. ↑ Reviews of On Lambda-Nonlinear-Boundary-Eigenvalue-Problems:
  7. ↑ Analysis 1, Birkhaeuser Verlag, 157 pp., 2013, retrieved 24 April 2026
  8. ↑ Analysis 2, Birkhaeuser Verlag, 148 pp., 2013, retrieved 24 April 2026
  9. ↑ Richard von Mises Prize winners, GAMM, archived from the original on 20 September 2020, retrieved 27 February 2020
  10. ↑ Swedish Mathematical Society Distinguished Lectures and Honorary Members, November 2025, retrieved 24 April 2026
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