Nonlinear Science at the Dawn of the 21st Century Nonlinear science is by now a well established field of research at the interface of many traditional disciplines and draws on the theoretical concepts developed in physics and mathematics. The present volume gathers the contributions of leading scientists to give the state of the art in many areas strongly influenced by nonlinear research such as superconduction optics lattice dynamics biology and biomolecular dynamics. While this volume is primarily intended for researchers working in the field care has been taken that it will also be of benefit to graduate students or nonexpert scientist wishing to familiarize themselves with the current status of research