Visiting positions

·         Visiting Professor, July 25 – 30, 2017, University of Mannheim

·         Visiting Professor, Jul. 27 - Aug. 16, 2013, NCTS, National Tsing Hua University

·         Visiting Professor, Feb. 1-28, 2013, KAUST (King Abdullah University of Science and Technology)

·         Visiting Professor, Dec. 18 - 26, 2011, National University of Singapore

·         Visiting Professor, Sep. 1 - Nov. 30, 2011, University of Cambridge

·         Visiting Fellow, Aug. 16 - Sep. 11, 2010, Isaac Newton Institute for Mathematical Sciences

·         Visiting Professor, Jul. 19 - 25, 2009, National University of Singapore

·         Visiting Professor, Jan. 15 - Feb. 15, 2009, University of Cambridge

·         Visiting Professor, Feb. 11 - 18, 2008, University of Cambridge

·         Visiting Scholar, Sep. 1, 2007 - Feb. 28, 2008, University of Wisconsin-Madison

·         Visiting Professor, Feb. 20 - Mar. 3, 2007 University of Vienna

·         Visiting Professor, Feb. 1 - 16, 2006 University of Vienna

·         Visiting Professor, Sep. 1 - Dec. 15, 2003 University of Wisconsin-Madison

·         Postdoc, Sep. 2000 - Jan. 2002 Princeton University