2003-2009        G. Jaudon, "Kernels on discrete groups", PhD thesis, University of Geneva.
2002-2007        L. Guyot,  "Isolated points, limits and dimensions in the space of marked groups", PhD thesis, University of Geneva.
         

2005-2008        A. Minasyan
2004-2005        D. Rattaggi
2004                 J.-Ph. Préaux

September, 2007 June, 2007                 June, 2007                 June, 2007                 April, 2007                April, 2007                Janvier, 2007             Janvier, 2007             December, 2006        August, 2006 July, 2006                  February, 2006          January / Juin, 2006  June, 2005                 January, 2005            December, 2004        September, 2005 April-July, 2004         December, 2003

Prof. Jacek Swiatkowski, University of Wroclaw, PL. Dr. Tomasz Elsner, University of Wroclaw, PL. Prof. E. Guentner, University of Hawaii at Manoa, USA. Prof. M. Sapir, University of Vanderbilt, USA. Prof. B. Remy, Unversity of Lyon, FR. Prof. G: Roussau, University of Nancy, FR. Prof. M. Lustig, University of Aix-Marseille III, FR. Dr. D. Otera, Institut Fourier, FR. Dr. A. Muranov, Université de Lyon, FR. Dr. D. Sonkin, University of Virginia, USA. Prof. E. Guentner, University of Hawaii, USA. Dr. R. Tessera, University of Cergy-Pontoise, FR. Prof. T. Delzant, University of Strasbourg, FR. Prof. M. Lustig, University of Aix-Marseille III, FR. Dr. D.Kahrobaei , University of St Andrews, UK. Prof. I. Lysenok, Steklov Institute of Mathematics, RU. Dr. H.Parlier, EPFL, CH. Prof. V. Guba, University of Vologda, RU. Prof. M. Sapir, University of Vanderbilt, USA.