| Name | Affiliation | period |
| Francesco Amoroso | Université de Caen Basse-Normandie |
7 October 2012
- 12 October 2012 |
| Yves André | Ecole Normale Supérieure Paris |
20 September 2012
- 20 October 2012 |
| Pascal Autissier | Université Bordeaux I |
15 October 2012
- 19 October 2012 |
| Fabrizio Barroero | Technische Universitaet Graz |
8 October 2012
- 19 October 2012 |
| Cristiana Bertolin | Dipartimento di Matematica di Torino |
26 September 2012
- 28 September 2012 |
| Daniel Bertrand | Université Pierre et Marie Curie |
13 October 2012
- 18 October 2012 |
| Yuri Bilu | Université de Bordeaux I |
7 October 2012
- 13 October 2012 |
| Jeon Bo Gwang | University of Illinois, Department of Mathematics |
14 October 2012
- 18 October 2012 |
| Enrico Bombieri | Institute for Advanced Study, Princeton |
15 September 2012
- 30 September 2012 |
| Jean-Benoit Bost | Université Paris XI-Sud |
20 September 2012
- 30 September 2012 |
| Tim Browning | Bristol University |
23 September 2012
- 29 September 2012 |
| Yann Bugeaud | Université de Strasbourg |
4 October 2012
- 12 October 2012 |
| Laura Capuano | PhD Scuola Normale Superiore |
20 September 2012
- 20 October 2012 |
| Luca Caputo | Università di Pisa | |
| Fabrizio Catanese | Universität Bayreuth |
3 October 2012
- 12 October 2012 |
| Zoé Chatzidakis | Institut de Mathématiques de Jussieu, Université Paris 7 |
30 September 2012
- 6 October 2012 |
| Sara Checcoli | University of Basel |
20 September 2012
- 27 September 2012 |
| Andrea Ciappi | Scuola Normale Superiore di Pisa | |
| Alessandro Cobbe | Scuola Normale Superiore, Pisa |
20 September 2012
- 20 October 2012 |
| Jean-Louis Colliot-Thélène | CNRS - Université Paris-Sud |
14 October 2012
- 21 October 2012 |
| Pietro Corvaja | Università di Udine | |
| Sinnou David | Université Pierre et Marie Curie, Institut de Mathématiques de Jussieu |
7 October 2012
- 14 October 2012 |
| Laura De Marco | Harvard University |
23 September 2012
- 29 September 2012 |
| Pietro De Poi | Università di Udine |
3 October 2012
- 6 October 2012 |
| Ulrich Derenthal | Universität München |
19 September 2012
- 28 September 2012 |
| Roberto Dvornicich | Università di Pisa | |
| Jan-Hendrik Evertse | Universiteit Leiden |
14 October 2012
- 20 October 2012 |
| Christopher Frei | Ludwig-Maximilians-Universität München |
15 October 2012
- 20 October 2012 |
| Clemens J. Fuchs | ETH, Zürich |
20 September 2012
- 27 September 2012 |
| Aurélien Galateau | Université Pierre et Marie Curie |
23 September 2012
- 5 October 2012 |
| Carlo Gasbarri | Université de Strasbourg |
8 October 2012
- 13 October 2012 |
| Walter Gubler | Universität Tübingen |
30 September 2012
- 6 October 2012 |
| Philipp Habegger | Johann Wolfgang Goethe-Universität, Frankfurt am Main |
7 October 2012
- 13 October 2012 |
| Harald Helfgott | CNRS/ENS, Paris | |
| Mathilde Herblot | Université Paris Diderot | |
| Marc Hindry | Université Paris 7 Denis Diderot |
14 October 2012
- 20 October 2012 |
| Ben Hutz | CUNY, New York |
8 October 2012
- 14 October 2012 |
| Dijana Kreso | Graz University of Technology |
10 October 2012
- 16 October 2012 |
| Lars Kühne | ETH, Zürich | |
| Michel Laurent | Institut de Mathématiques de Luminy |
6 October 2012
- 13 October 2012 |
| Antonino Leonardis | Scuola Normale Superiore |
20 September 2012
- 20 October 2012 |
| Yifeng Liu | Department of Mathematics, Massachusetts Institute of Technology, Cambridge |
13 October 2012
- 20 October 2012 |
| François Loeser | Université Pierre et Marie Curie, Paris |
30 September 2012
- 6 October 2012 |
| Vincenzo Mantova | Università di Pisa | |
| Raffaele Marcovecchio | Università di Pisa |
20 September 2012
- 20 October 2012 |
| Zivanovic Milan | High educational institution of applied studies for preschool teachers, Krusevac, SERBIA |
1 October 2012
- 10 October 2012 |
| Gabriele Mondello | "Sapienza" Universita` di Roma |
19 September 2012
- 22 September 2012 |
| Junjiro Noguchi | University of Tokyo |
22 September 2012
- 29 September 2012 |
| Paolo Oliverio | Dipartimento di Matematica, Università della Calabria |
18 September 2012
- 22 September 2012 3 October 2012 - 7 October 2012 |
| Amilcar Pacheco | Paris VI-Rio de Janeiro |
15 October 2012
- 20 October 2012 |
| Fabien Pazuki | Université Bordeaux 1 |
14 October 2012
- 18 October 2012 |
| Patrice Philippon | Institut de Mathématiques de Jussieu |
23 September 2012
- 28 September 2012 |
| Jonathan Pila | University of Oxford |
24 September 2012
- 28 September 2012 |
| Francesco Pinna | Università degli studi di firenze, Dip. di Matematica U. Dini |
20 September 2012
- 17 October 2012 |
| Pietro Pirola | Università di Pavia |
24 September 2012
- 28 September 2012 |
| Bjorn Poonen | Massachusetts Institute of Technology |
14 October 2012
- 20 October 2012 |
| Lukas Pottmeyer | Universität Regensburg |
23 September 2012
- 28 September 2012 |
| Gabriele Ranieri | Centro Ennio De Giorgi, Pisa |
20 September 2012
- 20 October 2012 |
| Gaël Rémond | Institut Fourier, Grenoble |
13 October 2012
- 20 October 2012 |
| Zeev Rudnick | Tel Aviv University |
23 September 2012
- 28 September 2012 |
| Per Salberger | Chalmers University of Technology, Gothenburg |
14 October 2012
- 21 October 2012 |
| Umberto Sampieri | MASaI Srl |
24 September 2012
- 25 September 2012 |
| Thomas Scanlon | University of California at Berkeley |
30 September 2012
- 6 October 2012 |
| Harry Schmidt | Universität Basel |
15 October 2012
- 19 October 2012 |
| Wolfgang Schmidt | University of Colorado at Boulder |
6 October 2012
- 13 October 2012 |
| Joseph Silverman | Mathematics Department, Brown University |
14 October 2012
- 19 October 2012 |
| Alexei Skorobogatov | Imperial College London |
7 October 2012
- 11 October 2012 |
| Martin Sombra | ICREA and Universitat de Barcelona |
7 October 2012
- 12 October 2012 |
| Christophe Soulé | IHÉS, Bures-sur-Yvette |
14 October 2012
- 21 October 2012 |
| Peter Swinnerton-Dyer | Cambridge University |
14 October 2012
- 20 October 2012 |
| Lucien Szpiro | The CUNY Graduate Center |
7 October 2012
- 20 October 2012 |
| Robert Tubbs | University of Colorado |
1 October 2012
- 20 October 2012 |
| Jeff Vaaler | University of Texas at Austin |
6 October 2012
- 13 October 2012 |
| Jeanine Van Order | École Polytechnique Fédérale de Lausanne |
1 October 2012
- 20 October 2012 |
| Carlo Viola | Dipartimento di Matematica "L.Tonelli", Università di Pisa | |
| Simone Virili | Universitat Autònoma de Barcelona |
15 October 2012
- 21 October 2012 |
| Felipe Voloch | University of Texas at Austin |
14 October 2012
- 20 October 2012 |
| Michel Waldschmidt | Faculté de Mathématiques, Université Pierre et Marie Curie |
23 September 2012
- 30 September 2012 |
| Martin Widmer | Scuola Normale Superiore |
20 September 2012
- 20 October 2012 |
| Jörg Winkelmann | Ruhr-Universität Bochum |
30 September 2012
- 7 October 2012 |
| Gisbert Wüstholz | ETH, Zürich |
6 October 2012
- 13 October 2012 |
| Kazuhiko Yamaki | Kyoto University |
24 September 2012
- 2 October 2012 |
| Umberto Zannier | Scuola Normale Superiore |
20 September 2012
- 20 October 2012 |
| Shou-Wu Zhang | Columbia University and Princeton University |
1 October 2012
- 20 October 2012 |
| Michael Zieve | University of Michigan |
10 October 2012
- 17 October 2012 |