Notes (published and unpublished)
    
- 
Moduli spaces of twisted sheaves and applications. Crafoord Symposium May 16, 2024
 Slides   
 
- 
Hyperkaehler geometry. ITS Colloquium Zurich May 30, 2022
 Slides   
 
- 
Nodal quintic surfaces and Fano variety of lines
Talk at `Algebraic geometry' Paris May 2022. En l'honneur de Claire Voisin Slides   
 
- 
Geometry of K3 surfaces and hyperkaehler manifolds.
Plenary talk at the DMV annual meeting 2020. slides   
 
-  Stability structures on Lie algebras, after Kontsevich and Soibelman. Notes of talks
in April and May 2009. Bonn
(pdf-file )
     
    
-  Complex and real multiplication for K3 surfaces. Notes of a talk at GAEL 2008
(pdf-file )
     
    
-  Holomorphic symplectic manifolds and derived categories.
  Spring school Gargnano del Garda. 
Slides of my talks: 
  (Introduction pdf-file ), 
(Generalized K3 surfaces pdf-file ), 
(Fourier--Mukai transforms
pdf-file ),
 Autoequivalences of K3 surfaces pdf-file ),
(Mirror symmetry for K3 surfaces pdf-file )
     
    
-  Derived categories of smooth projective varieties.
Slides of a talk at the  `Conference on Algebro Geometric Derived Categories and Applications'
  at IAS
Princeton.
March 2008.  (pdf-file )
     
    
-  Derived equivalences and stability conditions (mainly for K3 surfaces). Notes of a talk at Intercity Seminar Algebraic Geometry.
Amsterdam December 2007.  (pdf-file )
     
    
   - Projectivity of Kähler manifolds - Kodaira's problem    (after C.
 Voisin)     Bourbaki to appear in Asterisque  math.AG/0512039
     
    
   - Moduli of tori and the Narain   moduli space. Notes of a talk  in
  the  lecture  series with M. Lehn and M.   Rosellen on "Moduli spaces 
of          toroidal  conformal field theories and T-duality".      Workshop
"Algebraic        Aspects of Mirror Symmetry" .     Kaiserslautern  June  2001
(ps-file
                           )        
 
   - Geometries on K3 surfaces and their symmetries. Notes of a Colloquium 
             talk given in Berlin and Kyoto. (ps-file
                           )
 
 
   - Infinitesimal    variation of  harmonic  forms and Lefschetz decomposition. 
          Preprint      2001. 15 pages.     
                       math.AG
     /0102116
   
 
   - The Kähler cone of a     compact   hyperkähler manifold. Preprint  1999.
         24 pages (version  
                  September.1999
                           ).