کتاب دانلود کتب لاتین علوم مهندسیریاضی
اپراتور دوره ای شرودینگر چند بعدی - نظریه آشفتگی و کاربرد ها
اپراتور دوره ای شرودینگر چند بعدی - نظریه آشفتگی و کاربرد ها

Multidimensional Periodic Schrödinger Operator - Perturbation Theory and Applications
نویسنده: Oktay Veliev
سال انتشار: 2019
تعداد صفحات: 333
زبان فایل: English
فرمت فایل: pdf
حجم فایل: 5MB

دانلود رایگان

Publisher : Springer

ISBN-10 : 3030245802, 3030245772

ISBN-13 : 978-3030245801, 978-3030245771

ASIN : B07VX124S7

This book describes the direct and inverse problems of the multidimensional Schrödinger 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.