Upcoming Events Regular Events BGHK Seminar on Symplectic and Contact Geometry Next meeting: Cologne, 29 March 2019 BGHK Seminar on Symplectic and Contact Geometry meeting: Bochum, 03 May 2019 BGHK Seminar on Symplectic and Contact Geometry meeting: Gießen, 31 May 2019 Annual retreat Next retreat: Schloß Rauischholzhausen, 15 - 20 September 2019 Geometric Dynamics Days Next meeting: Aachen, 15 - 16 November 2019 Workshops, Conferences, Schools Spring School and Workshop on Polytopes Bochum, 11 - 15 March 2019 Interactions between Contact and Lorentzian Geometry Bochum, 20 - 24 May 2019 Floer Lectures Bochum, 27 - 28 June 2019 RUByS 2019 - Symmetries in Action at the RUB Bochum, 05 - 06 July 2019 Quantization in Symplectic Geometry Cologne, 15 - 19 July 2019 Summer School on Persistent Homology and Barcodes Schloß Rauischholzhausen, 05 - 09 August 2019