The 20 papers contained in this volume span the areas of mathematical
physics, dynamical systems, and probability. Yakov Sinai is one of the
most important and influential mathematicians of our time, having won
the Boltzmann Medal (1986), the Dirac Medal (1992), Dannie Heinemann
Prize for Mathematical Physics (1989), Nemmers Prize (2002), and the
Wolf Prize in Mathematics (1997). He is well-known as both a
mathematician and a physicist, with numerous theorems and proofs bearing
his name in both fields, and this book should be of interest to
researchers from all fields of the physical sciences.