January: Seminar EPFL, Lausanne
February-May: ICERM semester program „Point configurations in geometry, physics, and computer science“, Brown, Providence RI
April 3-4: Nederlands Mathematisch Congress, Koningshof in Veldhoven
April 5: 6th SDP day, CWI Amsterdam
April 9-13: Organization (with A. Schürmann, S. Torquato, R. Womersly) of Workshop „Computation and Optimization of Energy, Packing, and Covering“, ICERM, Brown, Providence RI
June 18-22: Conference in honor of Thomas C. Hales: „From the Fundamental Lemma to Discrete Geometry, To Formal Verification“, University of Pittsburgh
July 1-6: ISMP 2018, Bordeaux
September 24-28: Workshop „Discrete geometry and automorphic forms“, American Institute of Mathematics
August: Discrete Phase Space Methods for Quantum Fault-Tolerance, DPG Physics Centre, Bad Honnef
September: SFB Retreat
December 3: Colloquium „Research Training Network Algorithmic Optimization“, Trier


April: Oberwolfach workshop: Mixed-Integer Nonlinear Optimization
July: SIAM Conference Applied Algebraic Geometry, Bern


January 9-13: 21st Combinatorial Optimization Workshop, Aussois
February 3-9: PEAK 2017, Workshop on Perspectives and Emerging Topics in Algebra and Convexity, Haus Bergkranz, Austria
March: Oberwolfach workshop: Real algebraic geometry with a view toward moment problems and optimization
April: Oberwolfach workshop: Discrete Geometry
April 28: Kolloquium RWTH Aachen
May: Discrete Geometry Fest, Budapest
May 31: Kolloquium Osnabrück
June: CTW, Cologne
July: FoCM, Barcelona
August: Computational Symplectic Topology, Cologne
September: SFB Retreat
September 25-27: Workshop on Geometric Curvature Functionals and Discretizations, Kloster Steinfeld
October 9-13:  Organization (with P. Hersh, V. Reiner, B. Sturmfels, G.M. Ziegler) of Workshop: Geometric and topological combinatorics: Modern techniques and methods, MSRI
November 28: Séminaire de Théorie Algorithmique des Nombres, Bordeaux
December 7-9: 5. Alpen-Adria Workshop on Optimization Klagenfurt


January: Oberwolfach workshop: Lattices and Applications in Number Theory
January 4-April 22: Hausdorff Trimester Program, Mathematics of Signal Processing, Bonn
February: Kolloquium Universität Duisburg-Essen
April: Meeting: Moment problems in Theoretical Physics, Konstanz
July: 7ECM, Berlin


January 5-9: 19th Combinatorial Optimization Workshop, Aussois
January 22: Kolloquium Bielefeld
May: Combinatorics Colloquium, London
May: Combinatorics Seminar, Warwick
June: Kolloquium Konstanz
June: Operations Research Seminar, Tilburg
July: Frankfurt-Darmstadt Afternoon on Discrete Mathematics, Frankfurt
July: BMS Summer school „Convex geometry: discrete and computational“, Berlin
July: ISMP, Pittsburgh
September: Geometry and Physics of Spatial Random Systems, Karlsruhe
October: Organization (with B. Peis, H. Röglin, O. Schaudt) of workshop: Efficient algorithms in game theory, optimization and data science, Aachen-Bonn-Cologne
October: Oberwolfach workshop: Mixed-Integer Nonlinear Optimization
October: Conference „Convexity, Probability and Discrete Structures, a Geometric Viewpoint“, Paris


January 24: Kolloquium, Chemnitz
February 10-14: Workshop: Semidefinite programming and graph algorithms, ICERM, Brown University
February 27-March 2: Workshop: Applications of Real algebraic geometry, Helsinki
April 6-12: Oberwolfach workshop: Real algebraic geometry with a view towards systems control and free positivity
June 2-6: Topical Workshop: Computational Nonlinear Algebra, ICERM, Brown University
June 8-14: Oberwolfach seminar: Recent Methods in Sphere Packing and Optimization
July 10: Kolloquium, Trier
August 31-September 6: Oberwolfach workshop: Discrete geometry
September 22-September 26: Semidefinite Optimization, Approximation, and Applications, Simons Institute for the Theory of Computing, Berkeley
September 29-November 22: ESI Programme „Minimal energy point sets, lattices, and designs“


March 21-22: 4th SDP days
May 13-15: Cardiff
June 4: Colloquium Toulouse
July 27-August 1: ICCOPT, Lisbon
September 16: Seminar: Max Planck Institut, Bonn
October 7-9: Second ERC Workshop: Delaunay Geometry, Triangulations and Spheres, FU Berlin
October 28: Colloquium, Hagen
November 12-15: CIRM, Luminy