Spectral Analysis of Differential Operators: Interplay Between Spectral..

Книга Spectral Analysis of Differential Operators: Interplay Between Spectral... Spectral Analysis of Differential Operators: Interplay Between Spectral and Oscillatory Properties Книги Математика Автор: Fedor S. Rofe-Beketov Год издания: 2005 Формат: pdf Издат.:World Scientific Publishing Company Страниц: 464 Размер: 17,5 ISBN: 9812562761 Язык: Английский0 (голосов: 0) Оценка:This is the first monograph devoted to the Sturm oscillatory theory for infinite systems of differential equations and its relations with the spectral theory. It aims to study a theory of self-adjoint problems for such systems, based on an elegant method of binary relations. Another topic investigated in the book is the behavior of discrete eigenvalues which appear in spectral gaps of the Hill operator and almost periodic Schrödinger operators due to local perturbations of the potential (e.g., modeling impurities in crystals). The book is based on results that have not been presented in other monographs. The only prerequisites needed to read it are basics of ordinary differential equations and operator theory. It should be accessible to graduate students, though its main topics are of interest to research mathematicians working in functional analysis, differential equations and mathematical physics, as well as to physicists interested in spectral theory of differential operators.