Spencer Bloch: Eilenberg Visiting Professor / Fall 2010 Xuejun Guo: ( Zhang ) January 2009 - December 2009 Bao Chau Ngo: Eilenberg Visiting Professor / Spring 2010 Ambrus Pal: ( Goldfeld ) November 2009 Yannan Qiu: ( Zhang ) Academic Year 2009 / 2010 Richard Schoen: Eilenberg Visiting Professor / Fall 2009 Jian Song: ( Phong ) Spring 2010 Jacob Sturm: ( Phong ) Spring 2010 Claude Viterbo: Eilenberg Visiting Professor / Spring 2011 Weiyi Zhang: ( Liu ) Fall 2009
