This volume grew from a Special Session in } thematical Physics organized as a part of the 774th Heeting of the American } thematical Society in Boulder, Colorado, 27-29 l rch, 1980. The organizers attempted to include a mix of mathematicians, physi cists and chemists. As interest in the session increased and as it became clear that a significant number of leading contributors would be here, we were offered the opportunity to have these pro ceedings published by Plenum Press. We would like first to express our thanks to Plenum Press, to the American Hathematical Society, and to the University...
This volume grew from a Special Session in } thematical Physics organized as a part of the 774th Heeting of the American } thematical Society in Bould...
