Algebraic Geometry Workshop                        

                                               University of Michigan, Ann Arbor

                                                                 May 4-8, 2009 

                       


                  Title:   Fourier-Mukai functors, regularity on abelian varieties, and Generic Vanishing theorems


                  Main lecturers:  Giuseppe Pareschi  (Università di Roma "Tor Vergata")

                                          Mihnea Popa (University of Illinois, Chicago)   

                  Guest lecturer:  Donu Arapura (Purdue University)

                  
                  Schedule

                  Outside participants  

                  Description.  The Fourier-Mukai transform is an equivalence between the derived categories 

           of coherent sheaves on an abelian variety, and on its dual variety. Introduced 

           by Mukai, it has found many recent applications in the work of Chen-Hacon 

           and Pareschi-Popa, and has become a fundamental tool in studying the geometry of abelian 
           varieties, and more generally, of irregular varieties. Furthermore, similar equivalences 
           play a major role in studying the birational geometry of algebraic varieties through 
           derived categories (see work of Bondal-Orlov, Bridgeland and Kawamata). In this workshop 
           we will focus on applications of the Fourier-Mukai transform to regularity of sheaves on 
           abelian varieties and more generally of objects in derived categories, and on connections 
           with the Schottky problem, with syzygies of abelian varieties, and with the Generic 
           Vanishing theorems orginating in work of Green-Lazarsfeld. Plenty of concrete 
           applications will be provided.

                 Relevant papers.                 
                 1. G. Pareschi and M. Popa, M-regularity and the Fourier-Mukai transform, Pure and Applied Mathematics 
               Quarterly 4 (2008), no. 3, 587-611. F. Bogomolov Special Issue, math.AG/0512645
                 2. G. Pareschi and M. Popa, Generic vanishing and minimal cohomology classes 
               on abelian varieties, Math. Ann. 340  (2008), no. 1, 209-222, math/0610166
                 3. G. Pareschi and M. Popa, GV-sheaves, Fourier-Mukai transform, and generic vanishing, math/0608127
                 4. G. Pareschi and M. Popa, Regularity on abelian varieties, III: relationship with Generic Vanishing 
               and applications, to appear in the Proceedings of the Clay Institute Workshop ``Aspects of vector bundles
               and moduli", arXiv:0802.1021
                 5. G. Pareschi and M. Popa,  Strong generic vanishing and a higher dimensional Castelnuovo-de Franchis 
               inequality, to appear in Duke Math. J., arXiv:0808.2444

                 References. Some useful reference texts:
            [GH] P. Griffiths and J. Harris, Principles of Algebraic Geometry.
            [Ha] R. Hartshorne, Algebraic geometry.
            [Hu] D. Huybrechts, Fourier-Mukai transforms in Algebraic Geometry.
            [La] R. Lazarsfeld, Positivity in Algebraic Geometry.
            [Mu] D. Mumford, Abelian varieties.
            [Th] R. Thomas, Derived categories for the working mathematician.

                     Background.  The lectures will assume familiarity with basic Algebraic Geometry 
           as in [Ha], as well as some knowledge of abelian varieties, homological techniques,
           and vanishing theorems. While there will be two introductory lectures on abelian varieties
           and derived categories, we hope that people have seen at least part of this stuff before.
           Here is some suggested reading:
                     1. For abelian varieties:  
                    - Chapter II in [Mu], as well as at least the statements in Sections 16 and 17 in Chapter III.
                    - As a review (mostly in the complex case) one could use Section 9.1 in [Hu].
                    - At least the definitions of Albanese and Picard varieties (see, for example, p.331 in [GH]).
                     2. For derived categories:
                                 - The basic facts about derived categories, as covered in Chapters I-III of [Hu]. An alternative first reading
                                    would be the paper [Th].
                                 - Some more advanced topics that will come up in the lectures are covered in Chapters 5 and 9 of [Hu].
                                    It would be good to have a look at these topics before the workshop.                              
                     3. General facts about:
                                  - (Statements of the) basic vanishing theorems (see Chapter 4 in [La].
                                  - Castelnuovo-Mumford regularity (see Section 1.8 A in [La])
                                  - Syzygies (see Section 1.8 D in [La]).

                 Attending the workshop.   If you would like to attend the workshop, please contact Mircea Mustaţă 
                 at mmustata@umich.edu. Some limited funding is available for graduate students and postdocs. 
                 Deadline to register: March 18. 

                 Financial support. Support for the workshop is provided by the NSF (through an RTG grant) and by 
                 the David and Lucile Packard Foundation (through a Packard Fellowship). 

                 Related links.
                     Department of Mathematics-University of Michigan  
                 Here is a map of the central campus. The Mathematics Department is in the East Hall, 
                 at the intersection of South University and Church Street.