Ralph Abraham, Vienna 2005 thanks to IIASA
Vienna, August 21 to September 01, 2005

A short visit to Vienna, thanks to the invitation of the International Institute for Applied Systems Analysis, IIASA, to deliver the Koopmans Lecture for 2005.

The full report, a rather large PDF, includes the four short dispatches, plus a score of illustrations, mostly photos by LinK.
Revised by Ralph, 19 Feb 2006