Symplectic Structures in Geometry, Algebra and Dynamics
Collaborative Research Centre TRR 191
A1, A2, A3, A5, A6, A7
B1, B2, B3, B4, B5, B6, B7
C1, C2, C3, C4, C5
Dynamics & Variational Methods
B7: Lorentz and contact geometry
Nemirovski, Suhr
The aim of the project is to understand the geometry of globally hyperbolic and Zollfrei spacetimes using the natural contact structure on the space of lightlike geodesics. We investigate causality relations using positive Legendrian isotopies, give a new interpretation of redshifts in terms of contact forms, and study the topology of Lorentz manifolds all of whose lightlike geodesics are closed.
Dr. Stefan Nemirovski (PI)
mail: stefan.nemirovski at
phone: 0234 / 322 3331
room: NA 4/67
Faculty of Mathematics
Ruhr-University Bochum
Dr. Stefan Suhr (PI)
mail: suhr at
Faculty of Mathematics
Ruhr-University Bochum
Impressum Institution of DFG, MI University of Cologne and FM Ruhr-University Bochum