Find here some pictures 
- 
A  picture  during Christmas 2003.
- 
This   picture  was made by  
Yasushi Gomi at the end of my presentation for the 
''Habilitation à diriger des recherches'' in December 1998.
- 
Here the   participants  of a summer school in 
Picquigny sur Somme near Amiens; summer 1998.
- 
 here  the participants 
of a summer school in Hesselberg in Germany; summer 1999. 
- 
 And here  the participants of a
summer school in Isle of Thorns near Brighton/England; summer 2000. 
- 
 the jury  of the thesis of Kenji Lefèvre 
(behind the candidat; 
left to right: Pierre Cartier, Raphaël Rouquier, 
Johannes Hübschmann, Alexander Zimmermann, Bernhard Keller, 
Alain Prouté). Photo provided by Bernhard Keller.
- 
A 
 photo  of the jury of the thesis of Intan Muchtadi-Alamsyah in April 2004. From left to right: André Leroy, Serge Bouc, Alexander Zimmermann, Intan Muchtadi, Francois Zara, Bernhard Keller, Steffen König. 
- 
 And here  the participants of the conference 
Representation theory and applications in Uppsala, June 2004. (I am not 
on the photo since I was answering at that moment 
some questions to my lecture)
- 
Some Oberwolfach pictures : 
In  January 1999 , in 
 July 2000  in 
 March 2001  in
 
September 2005  in
 February 2016  
 and some Luminy pictures :
In September 2006 , in   May  2004 and again in 
 May  2004.
- 
 Here  is a picture of mine at the Great Wall with a very symbolic bronze text by Mao.
- 
 Here  you will find some nice (compressed) pictures 
taken by Wei Jiaqun in Nanjing. You'll see him on photo 2. Photo 1 was taken during my talk in the algebra seminar at Nanjing Normal University in October 2007. Photo 2 is taken after the talks, and photo 3 and 4 shows Confuzius together with me. Photo 5 and 6 are taken opposite of the entrance place. 
 Here , lecturing 
 here with Wei Jiaqun ,  
 here with Confuzius,  the same 
pictures uncompressed.
-  A  photo  from the  CIMPA-UNESCO-Conference in Teheran in june 2008.  
-  A  photo  from the conference 
''Interactions between representation theory and commutative algebra'' 
Institut de Matematica (IUMB), Barcelona, Spain. 
-  A  photo  during a walk 
to Sugiton in Luminy in December 08, 
together with Sarah Witherspoon and Martin Lorenz.  Another 
 photo  back at the guest house. Both 
photos were taken by Martin Lorenz (thanks to Martin). 
-  Some photos of the CIMPA research school 
'geometric representation theory' in Bandung, August 1-12. 
At the beginning of the conference there was a group 
 photo . 
The first wednesday we made a small
 photo  
in front of the lecture theatre. 
On the weekend we had a social excursion where we
first went to a 
 art museum  
and then  
 attended  
a nice music performance 
with traditional Sundanese Anklung instruments. At the end 
of the conference one 
 thanks  
Intan for her 
kind and efficient organisation. Intan was so calm so that Zwara 
told me at the end that 'Intan did not even look stressed'.   
-  A  photo  with Manolo Saorin on May 1, 2012
in Saorin's home village near Murcia next to some traditional water management.
-  A  photo  together with Wolfgang Rump
taken in the Bärenschlössle
during the conference dinner of a conference in Stuttgart 2012.
Another  photo  at the end of my lecture 
at this conference, answering a question of Steffen König. 
-  The conference  picture 
of the most interesting ICRA XV in August 2012 in Bielefeld. 
-  During the visit to Bandung end of February 2013 
some photos were made during the lectures, the excursion to Dago forest, and 
the farewell dinner party.
 talking to Intan , 
 lecturing on the Saturday lecture , 
 still lecturing ,
 the group on Saturday lectures ,  
 and still Satruday's group , 
 lecturing on Wednesday's algebra seminar , 
 a very kind farewell present , 
 the group at the farewell dinner , 
 hike in Dago rain forest with Adit from Lombok
-  Soutenance de thè of Dellavitha Nasution. 
 Congratulation to the new doctor , 
  the jury1 , 
 the jury2 , the mathematical family
 Zhengfang, Della 
(with Emline, her son), Intan, 
  Guodong and myself 
- 
 the jury  of the thesis of Zhengfang Wang 
(behind the candidat; 
right to left: Ragnar Buchweitz, Rachel Taillefer, 
Claude Cibils, Marc Rosso, Bernhard Keller, Alexander Zimmermann).