February-May: ICERM semester program „Point configurations in geometry, physics,
       and computer science“, Brown, Providence RI
       January 17-23: Oberwolfach workshop: Lattices and Applications in Number Theory
       April 6-8: SIGOPT 2016 International Conference on Optimization, University of Trier
       July 11-15: Summer School on Real Algebraic Geometry and Optimization, Georgia Tech, Atlanta
       December 13-14: Workshop „Combinatorial Optimization meets Parameterized Complexity“, Bonn
       March 22-26: Third ERC Workshop: Discrete Models in Geometry and Topology, FU Berlin
       June 29-July 10: BMS Summer school “Convex geometry: discrete and computational”, Berlin
       August 11-14: FRICO 2015 – 19th Workshop on Future Research in Combinatorial Optimization, Cologne
       October 1-2: Workshop “Efficient algorithms in game theory, optimization and data science“, Aachen
       October 21-23: Conference “Panorama of Mathematics”, Hausdorff Center Bonn
       November 4: Invited talk at Seminar Combinatorics and Optimization, CWI, Amsterdam
       February 27-March 2: Workshop: Applications of Real algebraic geometry, Helsinki
       May 9-10: Symposium: Diskrete Mathematik, Frankfurt am Main
       June 8-14: Oberwolfach seminar: Recent Methods in Sphere Packing and Optimization
       October 7-9: Second ERC Workshop: Delaunay Geometry, Triangulations and Spheres, FU Berlin