| Name | Affiliation | period |
| Takuro Abe | Kyoto University |
17 February 2015
- 21 February 2015 |
| Drazen Adamovic | University of Zagreb |
11 January 2015
- 17 January 2015 |
| Alejandro Adem | University of British Columbia |
15 February 2015
- 28 February 2015 22 February 2015 - 1 March 2015 |
| Karim Alexander Adiprasito | FU Berlin | |
| Clair Amiot | University of Grenoble |
1 February 2015
- 3 February 2015 |
| Ivan Angiono | Universidad Nacional de Cordoba (Argentina) |
3 February 2015
- 5 February 2015 |
| Tomoyuki Arakawa | Kyoto University |
10 January 2014
- 17 January 2014 8 December 2014 - 24 December 2014 |
| Eric Babson | University of California, Davis | |
| Tony Bahri | Rider University |
8 February 2015
- 28 February 2015 |
| Bruno Benedetti | Free University Berlin |
8 February 2015
- 28 February 2015 |
| Andrew Berget | Western Washington University |
16 February 2015
- 20 February 2015 |
| Pavle V. M. Blagojević | Free University Berlin / Mathematical Institute SASA Belgrade |
7 February 2015
- 28 February 2015 |
| Thomas Brady | Dublin City University |
16 February 2015
- 21 February 2015 |
| Sylvain Carpentier | MIT graduate student |
11 January 2015
- 23 January 2015 11 January 2015 - 23 February 2015 |
| Maria Chlouveraki | Université de Versailles - St Quentin | |
| Suyoung Choi | Ajou University |
7 February 2015
- 28 February 2015 |
| Meng Kiat Chuah | National Tsing Hua University |
2 February 2015
- 5 February 2015 |
| Mike Davis | Ohio State University |
15 February 2015
- 28 February 2015 |
| Emanuele Delucchi | University of Bremen |
8 February 2015
- 25 February 2015 |
| Graham Denham | University of Western Ontario |
14 February 2015
- 28 February 2015 |
| Alexandru Dimca | Université de Nice-Sophia Antipolis, France |
16 February 2015
- 21 February 2015 |
| Alexander Engstrom | Aalto University | |
| Michael Falk | Northern Arizona University |
9 February 2015
- 21 February 2015 |
| Michael Farber | University of Warwick | |
| Eva Maria Feichtner | University of Bremen |
15 February 2015
- 21 February 2015 |
| Dmitry Feichtner-Kozlov | University of Bremen |
31 August 2014
- 6 September 2014 |
| Alex Fink | Queen Mary University of London |
14 February 2015
- 28 February 2015 |
| Matthias Franz | University of Western Ontario |
16 February 2015
- 22 February 2015 |
| Stephane Gaussent | Université Jean Monnet - Saint Etienne |
28 January 2015
- 6 February 2015 |
| Jan Geuenich | University of Bonn |
1 February 2015
- 3 February 2015 |
| Afshin Goodarzi | Royal Institute of Technology |
17 February 2015
- 28 February 2015 |
| Jing-Song Huang | Hong Kong University of Science and Technology |
18 January 2015
- 7 February 2015 |
| Victor Kac | MIT |
8 December 2014
- 21 December 2014 13 January 2015 - 31 January 2015 |
| Caroline Klivans | Brown University |
17 February 2015
- 22 February 2015 |
| Toshitake Kohno | Graduate School of Mathematical Sciences, the University of Tokyo |
13 February 2015
- 19 February 2015 |
| Ulrich Kraehmer | University of Glasgow | |
| Philipp Lampe | Bielefeld University |
1 February 2015
- 3 February 2015 |
| Matthias Lenz | University of Oxford |
8 February 2015
- 28 February 2015 |
| Paul Levy | Lancaster University |
18 January 2015
- 6 February 2015 |
| Fyodor Malikov | University of Southern California |
8 December 2014
- 23 December 2014 |
| Mario Marietti | Università Politecnica delle Marche |
9 February 2014
- 21 February 2014 |
| Ivan Marin | Université de Picardie-Jules Verne |
8 February 2015
- 14 February 2015 |
| Daniel Matei | IMAR |
14 February 2015
- 22 February 2015 |
| Karola Meszaros | Cornell University |
7 February 2015
- 15 February 2015 11 February 2015 - 11 February 2015 |
| Masahiko Miyamoto | University of Tsukuba |
11 January 2015
- 15 January 2015 |
| Anne Moreau | Université de Poitiers |
14 December 2014
- 23 December 2014 |
| Pierluigi Moseneder | Politecnico di Milano | |
| Alfredo Najera Chavez | Université Paris Diderot - Paris 7 |
1 February 2015
- 3 February 2015 |
| Yann Palu | Université de Picardie |
1 February 2015
- 3 February 2015 |
| Stefan Papadima | IMAR |
8 February 2015
- 28 February 2015 |
| Luis Paris | Université de Bourgogne |
16 February 2015
- 20 February 2015 |
| Guido Pezzini | Friedrich-Alexander-Universität Erlangen-Nürnberg |
2 February 2015
- 6 February 2015 |
| Pierre-Guy Plamondon | Université de Paris Sud XI |
1 February 2015
- 3 February 2015 |
| Alexander Premet | University of Manchester |
18 January 2015
- 7 February 2015 |
| Vic Reiner | University of Minnesota |
7 February 2015
- 14 February 2015 |
| Charlotte Ricke | University of Bonn |
1 February 2015
- 3 February 2015 |
| Vera Serganova | University of California, Berkeley | |
| Simona Settepanella | Hokkaido University |
11 February 2015
- 28 February 2015 |
| Peng Shan | Université de Caen |
19 January 2015
- 6 February 2015 |
| Alexandru Suciu | Northeastern University |
8 February 2015
- 28 February 2015 |
| Rudolf Tange | University of Leeds |
18 January 2015
- 7 February 2015 |
| Donna Testerman | École Polytechnique Fédérale de Lausanne |
18 January 2015
- 30 January 2015 |
| Ulrike Tillmann | University of Oxford |
9 February 2015
- 16 February 2015 |
| Daniele Valeri | SISSA, Italy (end 30.09.2014) |
8 December 2014
- 7 February 2015 |
| Jethro van Ekeren | Technische Universität Darmstad |
8 December 2014
- 14 December 2014 |
| Karen Vogtmann | Cornell University, USA |
8 February 2015
- 21 February 2015 |
| Max Wakefield | United States Naval Academy | |
| Geordie Williamson | University of Sidney |
18 January 2015
- 1 February 2015 |
| Oksana Yakimova | Universität Jena |
23 January 2015
- 2 February 2015 |
| Masahiko Yoshinaga | Hokkaido University |
11 February 2015
- 22 February 2015 |
| Sergey Yuzvinsky | University of Oregon, Eugene |
6 February 2015
- 28 February 2015 |