Christiane Tretter

Christiane Tretter (born 28 December 1964)^[1] 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 managing director of the institute.^[2] Her research interests include differential operators and spectral theory.

Christiane Tretter
Christiane Tretter in 2023
Born	(1964-12-28) 28 December 1964 (age 60)
Nationality	German
Awards	Richard von Mises Prize
Academic background
Alma mater	University of Regensburg
Thesis	Asymptotische Randbedingungen für Entwicklungssätze bei Randeigenwertproblemen zu ${\displaystyle N(y)=\lambda P(y)}$ mit ${\displaystyle \lambda }$-abhängigen Randbedingungen (1992)
Doctoral advisor	Reinhard Mennicken
Academic work
Discipline	Mathematics
Sub-discipline	Mathematical physics
Institutions	University of Bern University of Bremen University of Leicester
Doctoral students	Sabine Bögli
Main interests	Differential operators Spectral theory

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.^[1] Her doctoral dissertation, Asymptotische Randbedingungen für Entwicklungssätze bei Randeigenwertproblemen zu ${\displaystyle N(y)=\lambda P(y)}$ mit ${\displaystyle \lambda }$-abhängigen Randbedingungen, was supervised by Reinhard Mennicken.^[3]

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 in Bern in 2006.^[1]

Since 2008 she has been editor-in-chief of the journal Integral Equations and Operator Theory.^[1]

Books

Tretter is the author of two mathematical monographs, Spectral Theory of Block Operator Matrices and Applications (2008)^[4] and On Lambda-Nonlinear-Boundary-Eigenvalue-Problems (1993),^[5] and of two textbooks in mathematical analysis.

Recognition

Tretter won the Richard von Mises Prize of the Gesellschaft für Angewandte Mathematik und Mechanik in 1995.^[6]