These slides are a (slightly updated) version of the talk I gave
the Workshop on On-Line Algorithms on July 10, 2004
I also presented a more extensive version at the Zentrum für
Angewandte Informatik Köln (ZAIK) on June 25, 2004:
Programming support was provided (in his spare time) by Dr. Lamore
son Edward, who works for Lockheed Martin. Some help with drawing
the figures was provided by Dr. Lamore 10-year old daughter, Ruth.
