Photos of a trip to Göteborg and Stockholm, Sweden on May 23-27, 2004. I was the opponent of Katarina Blom's PhD defense in the Department of Mathematics at the Chalmers University of Technology (Göteborg) on May 24 and gave a Math/CS Colloquim of Computer Science at Chalmers later that day. On May 25, I gave a colloquim in the NADA Department of KTH (Royal Institute of Techonology) in Stockholm.

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