You can click on the image to see a larger version. The name of the artist is also there; can you find it?
This photo was taken in Joao Pessoa, October 2010.
This is the photo of the Encontro Brasileiro de Topologia, PUC-Rio, August 2010. I am sitting way at the front.
These photos were taken in my office at PUC-Rio, early 2007.
This photo was taken in Rio de Janeiro, December 2005.
This photo was taken at PUC-Rio, December 2004.
This photo was taken in Rio de Janeiro, September 2004.
This photo was taken at a friend's house, June 2003.
This photo was taken at PUC-Rio, March 2003.
This photo was taken at Escola Parque, at the occasion of the first round of OBM 2000. I am the one wearing glasses.
This photo was taken at PUC-Rio, possibly 1998.
This photo was taken at IMPA, possibly 1996.
This photo was taken in Princeton, NJ, possibly 1986.
This photo was taken in Rio de Janeiro, July 1981.