Title Multidimensional Periodic Schr??dinger Operator : Perturbation Theory and Applications Author(s) Veliev, Oktay Publication Cham, Springer International Publishing, 2019. Description XII, 326 p. 4 illus : online resource Abstract Note This book describes the direct and inverse problems of the multidimensional Schr??dinger operator with a periodic potential, a topic that is especially important in perturbation theory, constructive determination of spectral invariants and finding the periodic potential from the given Bloch eigenvalues. It provides a detailed derivation of the asymptotic formulas for Bloch eigenvalues and Bloch functions in arbitrary dimensions while constructing and estimating the measure of the iso-energetic surfaces in the high-energy regime. Moreover, it presents a unique method proving the validity of the Bethe???Sommerfeld conjecture for arbitrary dimensions and arbitrary lattices. Using the perturbation theory constructed, it determines the spectral invariants of the multidimensional operator from the given Bloch eigenvalues. Some of these invariants are explicitly expressed by the Fourier coefficients of the potential, making it possible to determine the potential constructively using Bloch eigenvalues as input data. Lastly, the book presents an algorithm for the unique determination of the potential. This updated second edition includes an additional chapter that specifically focuses on lower-dimensional cases, providing the basis for the higher-dimensional considerations of the chapters that follow ISBN,Price 9783030245788 Keyword(s) 1. EBOOK 2. EBOOK - SPRINGER 3. MATHEMATICAL PHYSICS 4. QUANTUM PHYSICS 5. SOLID STATE PHYSICS Item Type eBook Multi-Media Links Please Click here for eBook Circulation Data Accession#   Call# Status Issued To Return Due On Physical Location I09396     On Shelf