Some pictures

• Celebration of my 75th anniversary at the Mathematics Institute of my alma mater, the Leiden University
• Peters Fest Sept. 5/6 2024
• Workshop Perverse Sheaves and Applications, Dijon april 2015
• Memorial conference for A. van de Ven,  2015
• Workshop Fields Institute Toronto Canada (november 2013)
  
• Clay Math workshop Oxford Great Britain (august 2013)
  
• Contes 70th birthday (march 2012)
• Barth-fest (2011)
• Dijon workshop (my 60th birthday (May 28-30 2009)
• Mark Green's 60th birthday (2008)
• Joseph Steenbrink's 60th birthday (2007)
• Dinner for Jim Carlson's 60th birthday (2007)
• Allahabad 2006
• Geometry in Autumn 2006