This useful volume, based on the Taniguchi International Workshop held recently in Sanda, Hyogo, Japan, discusses current problems and offers the most up-to-date methods for research in spectral and scattering theory. Written by world-renowned experts and providing proofs in each chapter, Spectral and Scattering Theoryexamines tunneling effects and the Wk,p-continuity of scattering matrices the uniqueness theorem, eigenfunctions, Stark effects, and semiclassical asymptotics in Schr?dinger equations of many-body systems nonlinear periodic Schr?dinger equations and Toda lattice equations scattering poles of acoustic equations and the scattering of elastic equations Klein-Gordon-Zakharov equations nonlinear dynamics the stationary phase method for spaces of large dimension micro-local analysis in domains with corners and edges and more!