Prof. Pieter Belmans                                   Utrecht University                                            April        

Dr. Anna-Laura Sattelberger                       KTH Stockholm, Schweden                            Januar

Jeroen Sijsling                                            Universität Ulm                                                Februar

Sebastian Müller                                         Universität Heidelberg                                     Februar

Yara Elshiaty                                               Universität Heidelberg                                     Februar

Ferdinand Vanmaele                                   Universität Heidelberg                                     Februar

Tariq Syed                                                   Universität Mainz                                             April

Guilherme Feitosa de Almeida                    Universität Göttingen                                       Mai

Prof. Dr. Wolfgang Ziller                             University of Pennsylvania                                Juli

Max Zeuner                                                Universität Stockholm                                      Oktober

Nicolas Beck                                               Universität Berlin                                             Oktober

Matthias Hutzler                                          Universität Gothenburg                                   Oktober

Tim Lichtnau                                               Universität Bonn                                              Oktober

Heiko Braun                                                Universität Bonn                                              Oktober

Hugo Moeneclaey                                       Technische Hochschule Schweden                Oktober

Claude Sabbah                                           Centre de Mathematiques L. Schwartz, FR    November

Andreas Hohl                                              KU Leuven, Belgien                                        November

Andrea DAgnolo                                          Universität Rom                                              November

Frederik Witt                                                Universität Stuttgart                                        November

Marco Rampazzo                                        University of Bologna                                      November

Herr Nicolas Daans                                    University of Antwerp                                        Juli

Robert Laterveer                                        Strasbourg University                                        Juli

Iuliia Semikina                                            Universität Münster                                           Juli

Thorsten Beckmann                                   Universität Bonn                                                Juni

Pieter Moree                                               MPIM Bonn                                                       Juni

Maksim Zhykhovich                                    LMU München                                                  Juni

Prof. Dr. Alexandre Kosyak                        Institute of Mathematics, Kyiv, Ukraine             Juni

Dr. Felix Cherubini                                      University of Gothenburg, Sweden                   Juni

Sergei Iakovenko                                        Universität Regensburg                                    Mai

Pof. Dr. Jim Davis                                       Indiana University                                             Mai