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        During the academic year 2004-05, a year-long program of activity will 
        take place at the 
. The plan is 
        for a systematic, focused activity with the dual aim of discussing new 
        results and putting new insights gained from physics into the general 
        mathematical framework. 
        
 The first half-year of the program will have a mathematical focus 
          and the second half-year a physical one. Each half-year will involve 
          specialized workshops (see below) and mini-courses. 
          We are also preparing to hold the Strings 2005 Conference to wrap up this year-long 
          program.
         The program will be devoted to mathematical subjects motivated by 
          string theory, and to recent developments in string theory and related 
          physical fields which are of strong mathematical interest. On the mathematical 
          side, the aim is to foster interaction between such areas of mathematics 
          as derived categories, elliptic cohomology, geometric Langlands correspondence, 
          quantum cohomology, differential geometry varieties with special holonomy 
          and of special Lagrangian varieties. On the more physical side, the 
          aim is to foster new progress in the continuing drive towards understanding 
          the foundations of string/M-theory, and in the wealth of new ideas involving 
          D-branes, BPS states and various dualities which are of great importance 
          to mathematical subjects such as algebraic geometry. 
        held Tuesdays at the Perimeter Institute, held Thursdays at the Fields 
          Institutue 
         
          January 10-14, 2005
            Workshop 
            on Topological Strings 
            Organizing Cttee: E. Getzler, K. Hori, S. Katz
            held at the Fields Institute
          January 17-20, 2005
            Coxeter Lecture Series
            Speaker: Robbert Dijkgraaf 
            (Institute for Theoretical Physics, Amsterdam)
          
          March 21-25, 2005
            Workshop on N=1 Compactifications 
            
            Organizers: M. Douglas, K. Hori, S. Sethi
            held at the Fields Institute 
          
          March 28-April 1, 2005
            Workshop on String Phenomenology 
            Organizers: J. Louis, R. Myers, G. Shiu
            held at the Perimeter Institute 
          April 4-5,7, 2005 
            Distinguished Lecture Series 
            Speaker: Edward 
            Witten (IAS, Princeton)
          
          May 2-6, 2005
            Workshop on Gravitational Aspects of String 
            Theory 
            Organizers:  P. Kraus, D. Marolf, A. Peet
            held at the Fields Institute 
          May 9-11, 2005
            Coxeter Lecture Series 
            Speaker: Renata 
            Kallosh (Physics, Stanford)
          June 2, 2005 -- 4:00 p.m.
            Clay Math Institute Public Lecture
            Speaker: Eric Zaslow, Northwestern University
            Physmatics 
          
          June 8-12, 2005
            Workshop on Schubert Varieties
            Organizers: Lisa Jeffrey, Megumi Harada, Alistair Savage, Alexander 
            Yong
          June 20-July 8, 2005
            Summer 
            School Program
            Strings, Gravity and Cosmology
            Organizers: A. Buchel, T. Lee, R. Myers, M. Rozali, G. Semenoff 
            
            held at the Perimeter Institute
          
          
           As a conclusion to the 2004-05 String Theory Thematic Program activities 
            at the Fields and Perimeter Institutes, Strings 2005 will be held 
            at the University of Toronto. The Strings Conference is held annually, 
            where physicists get together from all over the world to present and 
            discuss new developments of string theory. It consists of invited 
            talks by leading physicists of this field. 
           Conferences are held in a different location each year; past venues 
            included USC (1995),  ITP 
            Santa Barbara(1996), Amsterdam (1997), ITP 
            Santa Barbara (1998), Potsdam (1999), Ann Arbor (2000), 
            Mumbai (2001), Cambridge 
            (2002), Kyoto (2003) and 
            Paris (2004) . Strings 
            2005 in Toronto will be the inaugural Strings Conference in Canada.
           
             
              
              
            
          
          Program Activities 2004
           
            
            FALL - Course on String Theory, Instructor: A. Peet
              FALL - Course on Mirror Symmetry, Instructor: K. Hori
              November 8-12, 2004 -- Mini-Course on Frobenius Manifolds and Integrable 
              Hierarchies, 
              Instructor : Boris Dubrovin (SISSA, Trieste)
             
              
            
          
          Past Program Activities 2004
           
            String Theory Seminar (held 
              bi-weekly on Mondays & Wednesdays)
              held at the Fields Institute
            September 27-October 2, 2004
              Workshop on Forms of Homotopy Theory: 
              Elliptic Cohomology and Loop Spaces 
              Organizing Cttee: M. Ando (UIUC), M. Hopkins (MIT), H. Miller 
              (MIT), J. Morava (Johns Hopkins)
              held at the Fields Institute
            November 15-17, 2004
              Coxeter Lecture Series
              Speaker: Nigel Hitchin 
              (Mathematical Institute, Oxford)
              November 15, 16 at 3:30 p.m. talks held at the Fields Institute 
              
              November 17 at 2:00 p.m. talk held at the Perimeter Institute
            
             November 19-23, 2004
              Workshop on Mirror Symmetry
              Organizing Cttee: D. Auroux, M. Gross, K. Hori, N. Yui
              held at the Perimeter Institute