Visiting Positions (1–5 months) 1992-2024, 7 Times Ihes, Bures-sur-Yvette, France 2023 IML, Stockholm, Sweden 2008, 2022 CRM, Barcelona, Spain 2017 Mit, Cambridge, USA 2009-2017, 3 Times Weizmann Institute, Israel 2014 Simons Center SCGP, USA 2014 Max-Plack Institute, Leipzig,德国2004年,2013年,瑞士劳桑市伯诺利中心,2002-2012,4倍Ecole Polytechnique,巴黎,法国,法国,1994-2011,8倍最大最大Planck Institute,Bonn,德国,1999-2013,3倍,3倍,3倍,梅克利,伯克利,美国2009年d'Azur,nice eciel,france 2007 Ecutities and vuk ecky, Normale Superieur, Lyon, France 2004 Universitis de Geneve, Switzerland 2003 Universitite de Nice, France 2002 Universite d'Angers, France 2002 ESI, Vienna, Austria 2000 LAPP, Annecy, France 1997-2000, 3 Times Yale University, USA 1996 ETH, Zurich, Switzerland 1995 RIMS, Kyoto, Japan 1993 Universite Paris VII, France 1992, 2012年,英国剑桥艾萨克·牛顿学院